单项选择题

What will happen to the plane under the "tank test"()

A. It will be broken.
B. It will be made stronger.
C. It will be filled with water.
D. It wilt be tested by pilots.

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单项选择题
When he was a boy, Mark Twain dreamed of traveling on river boats to()

A. become a riverboat pilot
B. gather material for his books
C. make money
D. enjoy himself
单项选择题
The MIS finally received recognition()

A. during President Kennedy’s term
B. fifty years later
C. ten years ago
D. last year from President Clinton
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