（安徽安慶2009教學(xué)質(zhì)量監(jiān)測）In      preparation for the launching of Shenzhou VII, 4、scientists need      knowledge of weather changes.
A．the; theB．a(chǎn); /C．/; aD．the; a
C
考察冠詞，In preparation for是固定搭配，第二空后的knowledge指具體的一門知識的時候是可數(shù)名詞，所以選C項。
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