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Read the ______ carefully before you do the test.
A．directionsB．explanationsC．situationsD．occupations
A
考察名詞辨析，directions 指導(dǎo)，操作說明，指南 explanations解釋 situation 情形  occupation職業(yè)
句意為在你做實(shí)驗(yàn)之前，一定要仔細(xì)閱讀操作說明。
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