{01}The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements.
A.if
B.till
C.as
D.while
解析:连词词义辨析。宇航员发现随着飞船深入太空控制它的运动越来越难。As表时间意为“随着” 本题选C。 {02}With some technical problems to be solved, it may be a while _______ the system is put into use.
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