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【单选题】
对于非基元反应,如果改变该反应的计量关系,那么速率方程中的反应级数将( )
A.
一定发生改变
B.
保持不变
C.
不能确定，需要根据具体的情况确定
D.
无论对基元反应还是非基元反应，均保持不变
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【多选题】维生素D可以促进以下哪些营养素的吸收( )
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钙
B.
镁
C.
磷
D.
锌
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【简答题】Only in this way can Chinese enterprises improve their competitiveness and avoid being defeated by their foreign after China’s entry into the WTO. A) 只有这个方法才能帮助中国企业去参加竞争，避免在加入世贸组织后被其外国对手所击败。 B)...
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【单选题】We can infer from the passage that______.
A.
existing enterprises would be moved and no new industry would be built there
B.
the place chosen added to the cost of the building because of unexpected extra work
C.
damage was done though the lake is still a beautiful place
D.
officials have decided to adopt the proposal of those people concerned
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【单选题】So long as you work hard enough, a(an) _____ rod can be ground into a needle. (prov.)A．steelB．s
A.
170. So long as you work hard enough, a(an) _____ rod can be ground into a needle. (prov.) A．steel
B.
stick
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gold
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【单选题】膳食中有很多因素可影响锌的吸收，下面几项能促进锌吸收的因素为（）.
A.
植酸
B.
膳食纤
C.
维生素D
D.
过多的铜、镉、钙和亚铁离子
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【简答题】整合资料过程中,以下方法的作用是什么,请一一对应。
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【单选题】膳食中很多因素可影响锌的吸收，下列能促进锌吸收的因素是
A.
植酸
B.
膳食纤维
C.
维生素D
D.
铁离子
E.
鞣酸
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【单选题】维生素C可促进人体对（）的吸收
A.
钙
B.
铁
C.
磷
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锌
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【简答题】下面是将乙肝病毒控制合成病毒表面主蛋白的基因HBsAg导入巴斯德毕赤酵母菌生产乙肝疫苗的过程及有关资料，请分析回答下列问题。 【资料1】巴斯德毕赤酵母菌是一种甲基营养型酵母菌，能将甲醇作为其唯一碳源，此时AOX1基因受到诱导而表达【5’AOX1和3’AOX1（TT）分别是基因AOX1的启动子和终止子】。 【资料2】巴斯德毕赤酵母菌体内无天然质粒，所以科学家改造出了图1所示的pPIC9K质粒用作...
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【单选题】Which of the following facts is true according to the text?
A.
State-owned enterprises can make the most of foreign investment in the future.
B.
Foreign media companies can invest in multiple fronts including dance, film and news.
C.
Chinese media company will no longer be confined to governmental restrictions.
D.
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相关题目：
【多选题】维生素D可以促进以下哪些营养素的吸收( )
A.
钙
B.
镁
C.
磷
D.
锌
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【简答题】Only in this way can Chinese enterprises improve their competitiveness and avoid being defeated by their foreign after China’s entry into the WTO. A) 只有这个方法才能帮助中国企业去参加竞争，避免在加入世贸组织后被其外国对手所击败。 B)...
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【单选题】We can infer from the passage that______.
A.
existing enterprises would be moved and no new industry would be built there
B.
the place chosen added to the cost of the building because of unexpected extra work
C.
damage was done though the lake is still a beautiful place
D.
officials have decided to adopt the proposal of those people concerned
查看完整题目与答案
【单选题】So long as you work hard enough, a(an) _____ rod can be ground into a needle. (prov.)A．steelB．s
A.
170. So long as you work hard enough, a(an) _____ rod can be ground into a needle. (prov.) A．steel
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stick
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gold
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【单选题】膳食中有很多因素可影响锌的吸收，下面几项能促进锌吸收的因素为（）.
A.
植酸
B.
膳食纤
C.
维生素D
D.
过多的铜、镉、钙和亚铁离子
查看完整题目与答案
【简答题】整合资料过程中,以下方法的作用是什么,请一一对应。
查看完整题目与答案
【单选题】膳食中很多因素可影响锌的吸收，下列能促进锌吸收的因素是
A.
植酸
B.
膳食纤维
C.
维生素D
D.
铁离子
E.
鞣酸
查看完整题目与答案
【单选题】维生素C可促进人体对（）的吸收
A.
钙
B.
铁
C.
磷
D.
锌
查看完整题目与答案
【简答题】下面是将乙肝病毒控制合成病毒表面主蛋白的基因HBsAg导入巴斯德毕赤酵母菌生产乙肝疫苗的过程及有关资料，请分析回答下列问题。 【资料1】巴斯德毕赤酵母菌是一种甲基营养型酵母菌，能将甲醇作为其唯一碳源，此时AOX1基因受到诱导而表达【5’AOX1和3’AOX1（TT）分别是基因AOX1的启动子和终止子】。 【资料2】巴斯德毕赤酵母菌体内无天然质粒，所以科学家改造出了图1所示的pPIC9K质粒用作...
查看完整题目与答案
【单选题】Which of the following facts is true according to the text?
A.
State-owned enterprises can make the most of foreign investment in the future.
B.
Foreign media companies can invest in multiple fronts including dance, film and news.
C.
Chinese media company will no longer be confined to governmental restrictions.
D.
Media enterprises from outside China has never managed to enter Chinese market.
查看完整题目与答案