皮皮学，免费搜题
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【单选题】
蛋白质生物合成时，肽基转移酶活性存在于A.
核糖体小亚基
B.
核糖体50S大亚基
C.
mRNA分子内
D.
tRNA分子内
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】听下面一段材料，回答第1-3题。 1. What color of overcoat does the woman like ? A. The black one. B. The silver white one. C. The silver grey one. 2. What does the woman think of the overcoat ? A. It is of bad quali...
【简答题】Listen to the news and fill in the blanks. The Pantone Color Institute has named Classic Blue as its color of the year for 2020. The color offers stability and [Q1] , said the vice president of the in...
【单选题】Old luggage tags should _____ the new destination tags.
A.
replace with
B.
be replaced with
C.
be replaced by
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