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【多选题】
下列有毒物质中,( )属于食品中本身存在的天然有毒成分。A.
龙葵碱
B.
生氰糖苷
C.
多环芳烃
D.
蘑菇毒素
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举一反三
【单选题】Not only ________ increase, but also _________ raised as well. [ ]
A.
did the prices ; were their wages
B.
the prices did ; their wages were
C.
did the prices ; their wages were
D.
the prices did ; were their wages
【单选题】Giorgio, now fifteen, and Lucia, also in her teens, were reaching the ______ of their adolescence.
A.
crisis
B.
criterion
C.
causality
D.
credibility
【简答题】To Americans, punctuality is a way of showing respect for other people’s time. Being more than ten minutes late to an appointment usually calls for an [S01] _______, and maybe an explanation. People w...
【单选题】GLU、KET、BIL、URO分别代表尿试带法中的
A.
葡萄糖、酮体、胆红素、尿胆原
B.
葡萄糖、酮体、尿胆原、胆红素
C.
葡萄糖、酮体、胆红素、尿胆素
D.
葡萄糖、酮体、尿胆原、尿胆素
E.
酮体、葡萄糖、胆红素、尿胆原
【简答题】黄色光属于单色光。()
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