皮皮学,免费搜题
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搜题
【单选题】
银行汇票背书转让时,涉及的转让金额以()为准
A.
出票金额
B.
实际交易金额
C.
实际结算金额
D.
转让金额
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【多选题】核酶的特点
A.
与底物结合专一性较差
B.
催化速度较慢
C.
与底物结合专一性较强
D.
催化速度较快
【简答题】Since it is to ask for sick leave, he often uses it as an excuse for staying away from school.
【单选题】-----Lin Tao’s spoken English is very good. ----- _______. He often talks with foreigners.
A.
So it is.
B.
So is it.
C.
So is he.
D.
So he is.
【简答题】酶的底物专一性(substratespecificity)(名词解释)
【单选题】只能催化一种底物的酶的专一性称为:
A.
底物基因专一性
B.
相对专一性
C.
立体异构专一性
D.
绝对专一性
E.
同分异构专一性
【简答题】底物专一性(substrate specificity)
【多选题】核酶的特点
A.
与底物结合专一性较差
B.
与底物结合专一性较强
C.
催化速度较慢
D.
催化速度较快
【单选题】He often travels, but never takes the plane. He thinks it is ______ .
A.
comfortable
B.
dangerous
C.
effective
【简答题】阅读理解。 Mr. Turner likes fishing. It is his favorite sport. He often fishes for hours without catching anything. But this does not worry him. Some fishermen couldn't catch fish. Sometimes they catch old...
【简答题】底物专一性
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