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【单选题】
原核生物复制延长中真正起催化作用的酶是A.
DNA-pol I
B.
DNA-pol II
C.
DNA-pol III
D.
DNA-pol α
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【简答题】Please fill blanks with words given, and change the form when necessary. The central aim of the government is to keep social (stable) _______________and economic growth. 2. The (similar) _________...
【简答题】The ________ at the military academy is so rigid that students can hardly bear it. A) convention B) confinement C) principle D) discipline 2.The test results are beyond ________; they have been re...
【单选题】接有电容滤波器的桥式整流滤波电路如图所示，已知u(t)=35.4sin314tV，直流电流表读数150mA，输出电压Uo等于( )。
A.
42.4V
B.
-22.5V
C.
31.8V
D.
-30V
【单选题】At times I was so lonely I was amazed I didn’t just expire right there on the spot, as if loneliness that strong were a divine thunderbolt that could strike me down at any moment, whether I was in bed...
A.
die, such
B.
lose validity, so
C.
lose validity, such
D.
die, so
【简答题】Such personality ___ (特征)as self-discipline have no effect on longevity( 长寿 ). (CET4-2016.6 阅读 )
【简答题】请根据句子的意思选择恰当的单词填空。 intensify intense intensity (1) I was amazed at my own________and the overwhelming motivation that compelled me to spend a hundred dollars on a total stranger. (2) China ha...
【简答题】从下列短语中选出短语并根据句意用其正确的形式完成句子: take photos ; take a break ; take a risk ; take a long time ; take care of ; take part in ; take your time ; take my breath away I’ve been working so hard all day that I re...
【简答题】I learned about life from an ant farm. When I was seven years old, my family tried to __1__ an ant farm at home. First, we put clean sand in a thin glass box, and then we brought some ants from the ba...
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