皮皮学，免费搜题
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【单选题】
What is a fee of $27 for?
A.
The registration fee.
B.
The weekly cost for bed, breakfast and dinner.
C.
The fee of the first course.
D.
The cost of the tax for the course.
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皮皮学刷刷变学霸
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【简答题】HNO 3 和 NaNO 3 比较,热稳定性较强的是 _____ ,稀 HNO 3 和浓 HNO 3 比较,氧化性较强的是 _______ 。 答案: );浓 HNO 3 (浓硝酸)。
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【单选题】If we had been more careful, we ______ much better results now.
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【简答题】比较各对化合物的热稳定性(用＞号和＜号表示)。 HNO 3 ______NaNO 3 ，NO 2 SO 4 ______Na 2 SO 3 ， Ag2O______Cu 2 O，  ZnCO 3 ______HgCO 3 。
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由于长期大剂量使用糖皮质激素，反馈性抑制下丘脑-垂体-肾上腺轴，
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使垂体产生的ACTH长时间减少
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【简答题】（13分） Ⅰ.下图所示是分离混合物时常用的仪器，回答下列问题: （1）写出仪器A、C、E的名称 （2）分离以下混合物应该主要选用什么仪器？（填字母符号）食用油和酒精： 汽油和水： Ⅱ.实验室用固体烧碱配制200 mL  0.5 mol·L -1 的NaOH溶液。 （1）需称量_________ g 烧碱，应放在___________中称量、溶解。 （2）完成此配制实验，除了量筒，烧杯，玻璃棒外还...
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【单选题】( )标志着中国共产党独立领导革命战争、创建人民军队和武装夺取政权的开始。
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南昌起义
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【简答题】Which of the following is true of Paragraph 2? [A] Public-sector unions are prudent in taking actions. [B] Education is required for public-sector union membership. [C] Labor Party has long been fight...
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【单选题】Investment in the public sector, such as electricity, irrigation, public services and transport (excluding vehicles, ships and planes) increased by about 10%, although the emphasis moved to the transp...
A.
people saved less
B.
people were wealthy
C.
people consumed less
D.
expenditures on luxuries increased
查看完整题目与答案
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【简答题】HNO 3 和 NaNO 3 比较,热稳定性较强的是 _____ ,稀 HNO 3 和浓 HNO 3 比较,氧化性较强的是 _______ 。 答案: );浓 HNO 3 (浓硝酸)。
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【单选题】Investment in the public sector, such as electricity, irrigation, public services and transport (excluding vehicles, ships and planes) increased by about 10%, although the emphasis moved to the transp...
A.
people saved less
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A.
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B.
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C.
图纸
D.
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查看完整题目与答案
【单选题】If we had been more careful, we ______ much better results now.
A.
would be getting
B.
would have got
C.
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【简答题】比较各对化合物的热稳定性(用＞号和＜号表示)。 HNO 3 ______NaNO 3 ，NO 2 SO 4 ______Na 2 SO 3 ， Ag2O______Cu 2 O，  ZnCO 3 ______HgCO 3 。
查看完整题目与答案
【多选题】12 糖皮质激素对肾上腺的毒理学机制
A.
由于长期大剂量使用糖皮质激素，反馈性抑制下丘脑-垂体-肾上腺轴，
B.
使垂体产生的ACTH长时间减少
C.
从而导致肾上腺皮质功能丧失，
D.
产生促激素源性萎缩。
查看完整题目与答案
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查看完整题目与答案
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A.
南昌起义
B.
北伐战争
C.
秋收起义
D.
安源矿工起义
查看完整题目与答案
【简答题】Which of the following is true of Paragraph 2? [A] Public-sector unions are prudent in taking actions. [B] Education is required for public-sector union membership. [C] Labor Party has long been fight...
查看完整题目与答案
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A.
people saved less
B.
people were wealthy
C.
people consumed less
D.
expenditures on luxuries increased
查看完整题目与答案