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第1题

The United States is composed of fifty states,______ are separated from the others by land or water. A、 two of which B
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第2题

4. 下列类哪个属于java.lang.*包的是 ( )(本题2.0分) A、 Date B、 System C、 Button D、 File
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第3题

After getting lost in a storm, a member of the navy team ______ four days later. A、 rescued B、 was rescued C、 has res
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第4题

3. 下列变量定义不合法的是 ( )(本题2.0分) A、 boolean flag=true; B、 int k = 1+‘a’; C、 char ch = “a”; D、 float radius = 1/2;
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