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【单选题】
Why does a commuter(持火车月票的乘客) always look as if he has just been through a war? Here is a story of a commuter. Mr. Green gets up very early every day and eats a quick breakfast. Then he makes his wife drive him to the station. He arrives on time, but his train doesn't. When it finally comes, he squeezes on and finds there are no more seats. He has to stand with his bag between his knees. There is simply no room to put it down. Suddenly a cold wind hits him in the face. The window is broken! He remembers this summer. At that lime the same window didn't even open. The conductor makes his way through the crowd and asks for the commuter's ticket. The ticket, of course, is buried deep in the poor man's breast pocket. He digs for it. The conductor waits impatiently. Finally the train reaches the city. Mr. Green is already worn out. He says to himself, 'My God, I feel as if I've been through a war!' If Mr. Green had got up several minutes later, he ______.
A.
would have missed the train
B.
might still have been able to catch the train
C.
wouldn't be sad
D.
would have been away from a war
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A.
正确
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错误
【判断题】明清时期,我国的舞蹈更多的是在戏曲中展现的。
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正确
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错误
【单选题】患者,女,33岁。患乳腺增生病,双乳房结节月经前增大,面色少华,心烦易怒,月经量少、色淡,舌淡红苔薄白,脉弦细。其证型是
A.
肝郁气滞
B.
肝胃不和
C.
痰瘀凝结
D.
气滞痰凝
E.
冲任失调
【多选题】按用户对设备功能的要求,可将其分为 _____ 功能和_______ 功能。
A.
基本
B.
必要
C.
辅助
D.
不必要
【简答题】假设A类有如下定义,设a是A类的一个实例,下列语句调用哪个是错误的? class A { int i; static String s; void method1() { } static void method2() { } }A. System.out.println(a.i); B. a.method1(); C. A.method1(); D. A.meth...
【简答题】运用化学反应原理研究氮、氧等单质及其化合物的反应有重要意义。 (1)合成氨反应反应N 2 (g)+3H 2 (g) 2NH 3 (g),若在恒温、恒压条件下向平衡体系中通入氩气,平衡 移动(填“向左”“向右”或“不”);,使用催化剂 反应的ΔH(填“增大”“减小”或“不改变”)。 (2)O 2 (g)= O + 2 (g)+e - H 1 =' 1175.7' kJ·mol -1 PtF 6 (g...
【单选题】已知299 K时,合成氨反应 N 2 (g ) + 3H 2 ( g ) 2NH 3 ( g )  △H = -92.0 kJ/mol,将此温度下的1 mol N 2 和3 mol H 2 放在一密闭容器中,在催化剂存在时进行反应,测得反应放出的热量为(忽略能量损失) [     ]
A.
一定大于92.0 kJ
B.
一定等于92.0 kJ
C.
一定小于92.0 kJ
D.
不能确定
【简答题】在298.15K、100kPa下合成氨反应N 2 (g)+3H 2 (g)→2NH 3 (g)放出热量92.22kJ·mol -1 ,求该反应的△H和△U。
【单选题】患者,女,43岁。患乳腺增生病,双乳房结节月经前增大,面色少华,心烦易怒,月经量少、色淡,舌淡红苔薄白,脉弦细。其证型是
A.
肝郁气滞
B.
肝胃不和
C.
气滞痰凝
D.
痰瘀凝结
E.
冲任失调
【单选题】合成氨反应 N 2 (g) + 3 H 2 (g) = 2 NH 3 (g) :当Δ n N2 = -1 mol ,反应进度为( ) 。
A.
1
B.
-1
C.
1 mol
D.
-1 mol
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