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【单选题】
参与复制起始过程的酶中，下列哪一组是正确的?
A.
DNA-poL I、DNA内切酶
B.
DNA外切酶、连接酶
C.
RNA酶、解螺旋酶
D.
Dna蛋白、SSB
E.
DNA拓扑异构酶、DNA-pol l
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参考答案：
举一反三
【单选题】-- He was given a free five-day trip to Hainan. -- He _______ it since he has worked so hard.
A.
insists
B.
gets
C.
deserves
D.
receives
查看完整题目与答案
【单选题】---- Has he finished the work? ---- Not really. _______ he worked all day, ______ he couldn’t finish the task.
A.
Although, yet
B.
As, yet
C.
Despite, but
D.
In spite of, still
查看完整题目与答案
【简答题】党的以来,我国经济社会发展取得了历史性成就,但是,经济社会发展依然面临不少难题。 材料一区域之间发展不平衡,不同阶层、不同行业、不同区域间的收入差距还比较大,社会财富分配不够公平公正。全国还有几千万贫困人口没有摆脱贫困,群众在就业、教育、医疗、居住、养老等方面还有不少操心事、烦心事,面临不少难题。我国的收入分配结构正力争从哑铃型向橄榄型方向前进(如图所示)。 材料二我国的实体经济企业面临着成...
查看完整题目与答案
【单选题】“桃花潭水深千尺,不及汪伦送我情”中的“我”是谁
A.
杜甫
B.
李白
C.
白居易
D.
王维
查看完整题目与答案
【单选题】_____ to make a breakthrough in his career, he worked day and night in the company. [     ]
A.
Determined
B.
To have determined
C.
Have determined
D.
Having been determined
查看完整题目与答案
【简答题】Once upon a time there was a farmer worked hard in the fields     1. every day. One day, while he was ploughing the fields, he heard a   2. bumping sound. He saw a rabbit lie by the trump. He picked i...
查看完整题目与答案
【单选题】. He worked day and night, and therefore he _______ buy the sports car.
A.
could
B.
was able to
C.
might
D.
would
查看完整题目与答案
【单选题】党的十八大根据国内外形势新变化，顺应我国经济社会新发展和广大人民群众新期盼，从经济、政治、文化、社会民生、生态文明五方面对全面建成小康社会的目标提出了新要求，其中在社会民生方面提出了（）①科技进步对经济增长的贡献率大幅上升②资源节约型、环境友好型社会取得重大进展③基本公共服务均等化总体实现④中等收人群体持续扩大，扶贫对象大幅减少
A.
①②
B.
③④
C.
②③
D.
①④
查看完整题目与答案
【单选题】— How did Jim pass the exam? —He worked day and night for two months. ______, he passed it.
A.
in the way
B.
by the way
C.
on the way
D.
in this way
查看完整题目与答案
【单选题】Tom says he wont forget the day______ we worked together and the day ______ we spent together.
A.
when; which
B.
what; that
C.
which; when
D.
on which; when
查看完整题目与答案
相关题目：
【单选题】-- He was given a free five-day trip to Hainan. -- He _______ it since he has worked so hard.
A.
insists
B.
gets
C.
deserves
D.
receives
查看完整题目与答案
【单选题】---- Has he finished the work? ---- Not really. _______ he worked all day, ______ he couldn’t finish the task.
A.
Although, yet
B.
As, yet
C.
Despite, but
D.
In spite of, still
查看完整题目与答案
【简答题】党的以来,我国经济社会发展取得了历史性成就,但是,经济社会发展依然面临不少难题。 材料一区域之间发展不平衡,不同阶层、不同行业、不同区域间的收入差距还比较大,社会财富分配不够公平公正。全国还有几千万贫困人口没有摆脱贫困,群众在就业、教育、医疗、居住、养老等方面还有不少操心事、烦心事,面临不少难题。我国的收入分配结构正力争从哑铃型向橄榄型方向前进(如图所示)。 材料二我国的实体经济企业面临着成...
查看完整题目与答案
【单选题】“桃花潭水深千尺,不及汪伦送我情”中的“我”是谁
A.
杜甫
B.
李白
C.
白居易
D.
王维
查看完整题目与答案
【单选题】_____ to make a breakthrough in his career, he worked day and night in the company. [     ]
A.
Determined
B.
To have determined
C.
Have determined
D.
Having been determined
查看完整题目与答案
【简答题】Once upon a time there was a farmer worked hard in the fields     1. every day. One day, while he was ploughing the fields, he heard a   2. bumping sound. He saw a rabbit lie by the trump. He picked i...
查看完整题目与答案
【单选题】. He worked day and night, and therefore he _______ buy the sports car.
A.
could
B.
was able to
C.
might
D.
would
查看完整题目与答案
【单选题】党的十八大根据国内外形势新变化，顺应我国经济社会新发展和广大人民群众新期盼，从经济、政治、文化、社会民生、生态文明五方面对全面建成小康社会的目标提出了新要求，其中在社会民生方面提出了（）①科技进步对经济增长的贡献率大幅上升②资源节约型、环境友好型社会取得重大进展③基本公共服务均等化总体实现④中等收人群体持续扩大，扶贫对象大幅减少
A.
①②
B.
③④
C.
②③
D.
①④
查看完整题目与答案
【单选题】— How did Jim pass the exam? —He worked day and night for two months. ______, he passed it.
A.
in the way
B.
by the way
C.
on the way
D.
in this way
查看完整题目与答案
【单选题】Tom says he wont forget the day______ we worked together and the day ______ we spent together.
A.
when; which
B.
what; that
C.
which; when
D.
on which; when
查看完整题目与答案
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