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【单选题】
下列哪项被称作分子生物学现代分子生物学诞生的里程碑A.
Charpff 规则
B.
遗传规律
C.
DNA双螺旋
D.
PCR
E.
HGP
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举一反三
【单选题】Peter is funny and he always makes his friends _______.
A.
to laugh
B.
laughed
C.
laughing
D.
laugh
【简答题】书面表达。 Dear Peter, Thanks for your last letter. I am happy to know you' had a very great funny vacation. As your best pen pal, I'd like to tell you how I spent my vacation. I didn't go to school on May...
【单选题】Peter Sellers wouldnt be allowed his career today. All those funny radial stereotypes—the caricatured frogs, wops, yids and goodness-gracious-me Pakis—are in clear breach of the codes of political cor...
A.
he was a genius
B.
he was as big as The Beatles
C.
his life was full of drama and contradiction
D.
he led a very austere life
【简答题】若x，y∈N*，且x+y≤5，试求有序自然数对（x，y）的个数。
【简答题】What’s so funny about Peter’s cry: “What the hell was that?” Surprised by the loud boom, he ________________.
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