快乐学习
一个网站喵查铺子(catpuzi.com)全搞定~
题目:Edward, you play so well, But I ______ you played the piano.
A. didn’t know B. hadn’t known
C. don’t know D. haven’t known
喵查答案:A
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题目:A. would B. should C. might D. could
喵查答案:A
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题目:Why did the writer give his flowers to the elderly lady
A. She told him a nice story. B. She allowed him to pay first.
C. She gave him encouragement. D. She liked flowers very m……继续阅读 »
题目:.2009年7月22日,近500年在中国境内持续时间最长的日全食景观如约上演,前后持续长达两个多小时,近3亿人可以观测到这场难得的天象盛宴。人们能够准确预测日食,说明( )
A.科学理论是预测正确与否的检验标准
B.自然界是客观的,不以人的意志为转移
C.发挥主观能动性,人能够认识世界
D.实践是认识的来源和发展的动力
喵查答案:C
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题目:(10分)联氨(N2H4)及其衍生物是一类重要的火箭燃料,N2H2与N2O4反应能放出大量的热。
(1)已知:2NO2(g)=====N2O4(g) ΔH=-57.20 Kj·mol-1。一定温度下,在密闭容器中反应2NO2(g) N2O4(g)达到平衡。
A.减小NO2的浓度 B.降低温度
C.增加NO2的浓度 D.升高温度
(2)25℃时,1.0……继续阅读 »
题目:— I wonder ________ you’ll water this kind of flower .
——Every other day.
A. how often B. how longC. how soonD. how much
喵查答案:A
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题目:What is good about the flat
A. It has a large sitting room
B. It has good furniture
C. It has a big kitchen
喵查答案:C
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题目:2)步骤二中发生反应的化学方程式是_____,该反应___________(填“是”或“不是”)步骤一中反应的逆反应。
喵查答案:
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题目:I have to see the doctor because I ______ a lot lately.
A. have been coughing
B. had coughed
C. coughed
D. cough
喵查答案:A
考查动词时态。由时间状语lately可知此处表示现阶段一直在进行的动作或存在的状态,且强调其持续性,用现在完成进行……继续阅读 »
题目:(Ⅱ)求证:CF⊥平面BDE;
喵查答案:
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题目:解决人类面临的诸多重大问题需要各国相互合作。回答22—23题。
22.1930年,美国通过法案提高进口关税。这一行动引起连锁反应,各国纷纷调高关税。这反映了经济危机爆发后,西方国家
A.一致提高关税,共度难关 B.设置关税壁垒,转嫁危机
C.整顿金融体系,扩大内需 D.实行国家干预,限制出口
喵查答案:B
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题目:The news shocked the public,________ to great concern about students’safey at school.
A.having led
B. led
C. leading
D.to lead
喵查答案:C
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题目:A
Eddie McKay, a once-forgotten pilot, is a subject of great interest to a group of history students in Canada.
It all started when Graham Broad, a professor at the University o……继续阅读 »
题目:氢是一种清洁的可再生能源。上海最新研发的“超越”3号氢燃料电池轿车,每行驶100km仅耗氢1kg左右,同时消耗氧气约为(原子量:H—1,O—16) ( )
A.100mol
B.250mol
C.500mol
D.1000mol
喵查答案:B
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题目:③电话和电报等便捷的通讯方式促进了各地区之间的交流。( )
此题为判断题(对,错)。
喵查答案:√
……继续阅读 »