A model or an experiment in a science class can help students see things which would ______ remain hidden.

A．otherwiseB．still
C．thusD．therefore

A

解析試題分析：副詞辨析。A否則，要不然；B仍然；C結(jié)果是；D因此；句意：科學(xué)課上的模型或者實(shí)驗(yàn)會(huì)幫助學(xué)生發(fā)現(xiàn)一些要不能仍然還藏著的東西。根據(jù)句意說明A正確。
考點(diǎn)：考查副詞辨析
點(diǎn)評(píng)：不同的副詞要放在上下文語境中進(jìn)行辨析。同上要注意有些副詞的固定搭配。

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