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【简答题】
用图6-15所示的计数器CTR4设计一个4~15模12计数器或5-14模10的计数器。(2选1)
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参考答案:
举一反三
【简答题】It’s Really a Miracle (奇迹) Mr. Clarke works in New York and he brought his family to China last summer. They visited many places of interest and had a good time here. Before they left for New York, th...
【单选题】How is Lloyd portrayed in the story?
A.
He treats his family cruelly and does not deserve sympathy
B.
He is a villain
C.
He transforms from a loving husband and father into a man who deserts his family
D.
He has been through transformations from a confident and able man to a mentally deranged person
【单选题】He and his family had to ( ) on 50$ a week.
A.
pay
B.
spend
C.
live
D.
exist
【单选题】蛋白质中多肽链形成α—螺旋时,主要靠下列哪种键?
A.
疏水键
B.
氢键
C.
离子键
D.
范德华力
E.
以上都不是
【简答题】He loves his family and he loves his ____ with his heart and his soul.
【简答题】Peter was a successful 1.__________( 股票经纪人 ), with a large beautiful home and a very 2._____ ______ _______( 可观的收入 ). He worked long hours, so even though he enjoyed his job, he was never there to see...
【简答题】Text Organization PART ONE: Para 1-3 Ø The Writer views his life in the country as a and one. PART TWO: Para 4-7 Ø Life in the country is good yet sometimes . PART THREE: Para 8-11 Ø After quitting h...
【单选题】蛋白质中多肽链形成 α - 螺旋时,主要依靠哪种次级键
A.
肽键
B.
氢键
C.
疏水键
D.
盐键
【单选题】蛋白质中多肽链形成 α- 螺旋时,主要靠哪种次级键维持
A.
疏水键
B.
肽键
C.
氢键
D.
二硫键
【单选题】蛋白质中多肽链形成 α - 螺旋时,主要靠 维持。
A.
氢键
B.
盐键
C.
疏水作用
D.
范德华力
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