What makes online shopping so popular is it shortens the distance between manufacturers and consumers.

A .how B. that

C. whether D. why

B

【解析】

試題分析：句意：使得網(wǎng)上購(gòu)物如此受歡迎的原因是，它能縮短生產(chǎn)廠商和消費(fèi)者之間的距離。be動(dòng)詞后是表語(yǔ)從句，A .how 如何；怎樣B. that 只起連接作用C. whether 是否D. why為什么。從句中不缺成分也不少翻譯用that連接，故選B。

考點(diǎn)：考查名詞性從句的用法。

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