【題目】It hasn’t been___whether food from cloned animals is really safe for humans to eat.

A. confirmed

B. considered

C. turned out

D. worked out

【答案】A

【解析】考查動(dòng)詞詞義辨析。句意：人類食用來自克隆動(dòng)物的食品是否安全目前還沒有被確認(rèn)。四個(gè)選項(xiàng)的意思分別是：確認(rèn)，考慮，結(jié)果是/生產(chǎn)，被算出。目前的事實(shí)是人類食用來自克隆動(dòng)物的食品是不是安全的，大家都是在討論中，但是仍然缺少科學(xué)的依據(jù)，也沒有最終的結(jié)論。故選A。

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