【題目】____these experiments are interesting, it's important to remember that they may not always tell us much.
A.While
B.When
C.As
D.Since

【答案】A
【解析】句意：盡管這些實驗有趣，但記住這一點很重要，那就是這些實驗或許不會總告訴我太多。While“盡管/正當……時候”；When“當……時候”；As“因為/當……時候”；Since“既然/自從”。本句前后是轉(zhuǎn)折關(guān)系，用轉(zhuǎn)折連詞。故選A。

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