What did the pilot do with the plane after it took off？
A. He quickly climbed and then stopped the engines.
B. He climbed and then made the plane fall slowly.
C. He took off normally and then cut the engines for 20 seconds.
D. He climbed and then made the plane turn over.
查看答案
In the second paragraph the author mentions the tollbooth collector to______.
A. mean he will get benefits from the telecomm field
B. show he is too old to shift to a new position
C. console him on having been replaced by a machine
D. blame the PC for his unemployment
Which of the following might serve as the best title of the passage？
A. Blaming the PC.
B. The booming telecomm field
C. Internet distance learning.
D. Keeping up with computation.
According to the passage, the purpose of being weightless was to______.
A. see what conditions are like in space
B. prepare the young scientists for future work in space
C. show the judges of the competition what they could do
D. make the teams try out their ideas
A．Comparing withB．In comparisonC．Compared withD．Compare to
A. Comparing with
B. In comparison
Compared with
D. Compare to
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