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【单选题】
下图表示某DNA片段,有关该图的叙述正确的是 [     ]
A.
②和③交替排列,构成了DNA分子的基本骨架
B.
当DNA复制时,④的形成需要DNA连接酶
C.
如果该片段复制两次,则至少需游离的⑥共8个
D.
⑨在DNA中的特定排列顺序可代表遗传信息
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【单选题】Today, ____ rapid transportation and communication, the whole world seems to be smaller.
A.
regardless of
B.
in spite of
C.
because of
D.
instead of
【简答题】On today’s university campus, some students are devoted themselves whole-heartedly to academic study. Others are eager to join society to acquire experience. What’s your idea about these two kinds of ...
【单选题】有氧训练时合适运动强度的简易判断标志是
A.
运动时心率达到120次/min
B.
运动时代谢当量达到6METs
C.
运动时稍出汗,轻度呼吸加快但不影响对话
D.
运动时无ECG异常
E.
运动时无心绞痛
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200亿美元
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400亿美元
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20000亿美元
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40000亿美元
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47 million.
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4 billion.
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25 million.
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44 million.
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To surrended Saudi fugitive Osama bin Laden
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To convey the demands of the USA on the Americans' decision, of an air-raid on Afghanistan
C.
To tell Taliban leaders to hand over Bin Laden
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To advise Taliban leaders to get ready for the Americans' unexpected air attacks
【单选题】有氧训练时合适运动强度的简易判断标志是
A.
运动时心率达到120次/分
B.
运动时代谢当量达到6METs
C.
运动时稍出汗,轻度呼吸加快但不影响对话
D.
运动时无ECG异常
E.
运动时无心绞痛
【单选题】( )可以建立品牌偏好,说服消费者立即购买。
A.
告知性目标
B.
提醒性目标
C.
说服性目标
D.
创牌目标
【单选题】Today,_________ rapid transportation and communication , the whole world seems to be smaller.
A.
regardless of
B.
in spite of
C.
instead of
D.
because of
【单选题】假定2000年的名义GDP是40000亿美元,GDP平减指数是200%,(基期1987年价格指数为100),那么2000年的实际GDP以1987年的价格水平衡量为()亿美元
A.
200
B.
400
C.
20000
D.
40000
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