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【单选题】
The two were hard to combine and sometimes—as in his early marriages—the collision between them resulted in disaster. In this sentence, them refers to__________________.
A.
marriages
B.
a deep need to be loved and a fear of being betrayed
C.
disasters
D.
collision
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参考答案:
举一反三
【简答题】系统与环境之间只有( )交换,没有 ( )交换的系统称为封闭系统。
【简答题】A.The class begins at 8:00. B.The man managed to get to classroom on time. C.The man left his book in the store. D.The storekeeper came to the classroom, accompanied by Mr. Brown.
【单选题】某系统与环境之间没有物质交换只有能量交换,该系统是
A.
敞开系统
B.
封闭系统
C.
绝热系统
【判断题】对于封闭系统,系统与环境之间没有物质交换,只有能量交换。
A.
正确
B.
错误
【判断题】冷拉钢筋不宜用作受压钢筋。 [判断题] *
A.
正确
B.
错误
【单选题】听力原文: Four Colombian police officers are dead and at least five more wounded after leftist rebels ambushed a police patrol in the northwestern part of the country. Police officials say about 100 guerr...
A.
northwestern
B.
southwestern
C.
northern
D.
southeastern
【简答题】完形填空 Anson Lemmer , a 19­year­old from Glenwood Springs , Colorado , was on his last pizza delivery__ 1 __of the night , on June 15 , when he arrived at a__ 2 __house and found a man lying on the grou...
【简答题】根据系统与环境之间有没有能量和物质交换,系统分为三类,其中与环境既有能量交换又有物质交换的系统为 ; 与环境没有物质交换,只有能量传递的系统为 ;既没有物质交换又没有能量交换的系统为 。
【简答题】两国货币的利差,尤其是货币短期是存款利率之间的差额影响并决定了( )的关系。主要反映是在均衡条件下,由抵补套利行为所导致的远期汇率与国际利率差的关系。
【单选题】以下哪个系统与环境之间只有能量交换,没有物质交换?
A.
敞开系统
B.
封闭系统
C.
孤立系统
D.
隔离系统
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