3单选(4分)
二元函数f(x,y)=5-√x2+y2的极大值是（）
得分/总分
A.
（1,0）
B.
（0,0）
4.00/4.00
C.（1,1）
D.
（0,1）
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(4分)
偏导数fx(x0,y0)，fy(x0,y0)存在是函数z=f(x,y)在点(x0,y0)连续的( )
得分/总分
A.
必要条件
B.
充分条件
C.
即非充分也非必
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(4分)
若函数z=f(x,y)在点(x0,y0)处的偏导数存在，则在该点处函数z=f(x,y)（ ）
得分/总分
A.
有极限
B.
连续
C.
以上三项都不成立
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
7单选(2分)
Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
6单选(2分)
Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it la
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
Some birds fly to in fall every year.
得分/总分
A.
upward
B.
backward
C.
s
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
We found that his of the situation was wrong.
得分/总分
A.
promotion
B.
resolution
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
7单选(2分)
When Mr. David retired(退休), he bought a small house in a village near the sea. He liked it and hoped to live a
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
6单选(2分)
When Mr. David retired(退休), he bought a small house in a village near the sea. He liked it and hoped to live a
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
When Mr. David retired(退休), he bought a small house in a village near the sea. He liked it and hoped to live a
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
When Mr. David retired(退休), he bought a small house in a village near the sea. He liked it and hoped to live a
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
When Mr. David retired(退休), he bought a small house in a village near the sea. He liked it and hoped to live a
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
– Which share us meant for me?
- You can take half. They are exactly the same.
得分/总分
A.
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
some old tables, his house was empty.
得分/总分
A.
Except
B.
Apart from
C.
But
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
In one way of thinking, failure is a part of life. In another way, failure may be a way towards success. The ―s
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
In one way of thinking, failure is a part of life. In another way, failure may be a way towards success. The ―s
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
In one way of thinking, failure is a part of life. In another way, failure may be a way towards success. The ―s
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
In one way of thinking, failure is a part of life. In another way, failure may be a way towards success. The ―s
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
In one way of thinking, failure is a part of life. In another way, failure may be a way towards success. The ―s
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
7单选(2分)
The visitors tiptoed to the workroom_________ they should interrupt the painter’s work.
得分/总分
A.
provide
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
6单选(2分)
It doesn.t __________ what the guests wear.
得分/总分
A.
matter
B.
count
C.
point
D.
aff
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
Nuclear testing has exposed millions of people __________ radiation.
得分/总分
A.
from
B.
at
C.
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
He ___________ a generous donation to the charity.
得分/总分
A.
took
B.
did
C.
made
D.
w
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
Their quarrel ___________ down to money.
得分/总分
A.
goes
B.
makes
0.00/2.00
C.
comes
D.
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
Sometimes I still suffer__________ these weaknesses.
得分/总分
A.
at
B.
from
2.00/2.00
C.
on
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
The scheme was rejected __________ economic grounds.
得分/总分
A.
for
0.00/2.00
B.
at
C.
with
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
Americans with small families own a small car or a large one. If both parents are working, they usually h
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
Americans with small families own a small car or a large one. If both parents are working, they usually h
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
Americans with small families own a small car or a large one. If both parents are working, they usually
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
Americans with small families own a small car or a large one. If both parents are working, they usually h
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
Americans with small families own a small car or a large one. If both parents are working, they usually have
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
7单选(2分)
A farmer grew some vegetables in his garden. One day his wife was ill and he had no money. He had to sell som
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
6单选(2分)
A farmer grew some vegetables in his garden. One day his wife was ill and he had no money. He had to sell som
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
A farmer grew some vegetables in his garden. One day his wife was ill and he had no money. He had to sell som
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
A farmer grew some vegetables in his garden. One day his wife was ill and he had no money. He had to sell som
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
A farmer grew some vegetables in his garden. One day his wife was ill and he had no money. He had to sell som
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
On Saturday afternoon, Mrs. Green went to the market, _______ some bananas and visited her cousin.
得分/总分
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
It is the ability to do the job _______matters not where you come from or what you are.
得分/总分
A.
/
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
A MENTORING (导师制) program is giving life changing opportunities to Banbury youth.
Young Inspirations was fo
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
A MENTORING (导师制) program is giving life changing opportunities to Banbury youth.
Young Inspirations was fo
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
A MENTORING (导师制) program is giving life changing opportunities to Banbury youth.
Young Inspirations was fo
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
A MENTORING (导师制) program is giving life changing opportunities to Banbury youth.
Young Inspirations was fo
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
A MENTORING (导师制) program is giving life changing opportunities to Banbury youth.
Young Inspirations was fo
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
7单选(2分)
You know how it is when we get together. They talk about impossible dreams. “If I won the lottery (彩票), I would
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
6单选(2分)
You know how it is when we get together. They talk about impossible dreams. “If I won the lottery (彩票), I would
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
5单选(2分)
You know how it is when we get together. They talk about impossible dreams. “If I won the lottery (彩票), I would
答案是：B
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
4单选(2分)
You know how it is when we get together. They talk about impossible dreams. “If I won the lottery (彩票), I would
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
3单选(2分)
You know how it is when we get together. They talk about impossible dreams. “If I won the lottery (彩票), I would
答案是：D
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
2单选(2分)
That is _________ he likes the place so much.
得分/总分
A.
why
B.
what
答案是：A
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4
1单选(2分)
It looks __________ it were going to rain.
得分/总分
A.even if
B.even though
C.as if
D.seem
答案是：C
更新时间:2023/4/3 12:59:00
出自:兰州交通大学大学英语4 目前为： 1/1 页 首页 上页 下页 尾页