皮皮学，免费搜题
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搜题
【单选题】
LCR为众多科学家接受是因为出现了（）A.
耐热的连接酶
B.
热不稳定性连接酶
C.
RNA连接酶
D.
PCR
E.
DNA连接酶
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Do you know the man ?
A.
that I spoke
B.
I spoke to
C.
to who I spoke
D.
whom I spoke
【简答题】Do you know the man _______ under the apple tree? A: lying B; laying C; lay
【单选题】Do you know the man ?
A.
whom I spoke
B.
to who spoke
C.
whom I spoke to
D.
that I spoke
【单选题】— Do you know the man came here yesterday? — Yes, he brought me the most interesting book
A.
— Do you know the man ____came here yesterday? — Yes, he brought me the most interesting book ____ I had wanted to buy. A．who; what
B.
whom; which
C.
who; that
D.
whom; that
【简答题】定语从句转换为分词短语做后置定语。 Do you know the man who works by the window? Do you know the man ____by the window.(主动,现在分词)
【多选题】以下关于电感功率的说法中,正确的是
A.
电容储存的是电场能量
B.
电容是储能元件,既能吸收功率,又能释放功率
C.
纯电容不消耗能量
D.
电容的无功功率反映了电容吞吐能量的规模
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