搜题
王老师:19139051760(拨打)
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第1题

The smooth space flight experts say, marks a big ( )for Chinese scientists.
· breakthrough
· breakdown
· breake
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第2题

He failed to ( ) to the medicine.
· responded
· responding
· respond
· responds
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第3题

After dinner, I took a ( ) around the park.
· strike
· strode
· strobe
· stroll
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第4题

A hundred years ago people ( ) at the idea.
· scoffed
· strolled
· stroked
· scored
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