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【单选题】
某二极管的击穿电压为300V，当直接对220V正弦交流电进行半波整流时，该二极管是（ ）A.
会击穿
B.
不会击穿
C.
不一定击穿
D.
完全截止
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【单选题】I have lost dangerous goods of IMO-Class VII in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
【单选题】I have lost dangerous goods of IMO-Class I in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
【单选题】I have lost dangerous goods of IMO-Class VIII in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
【简答题】从1954年4月7日的家书中,我们知道傅聪正在学习 。父亲傅雷告诫他别把学习弄成“突击式”,目前要做的是抓住语言的要点,学得慢一些,但所学得必须 ,这样才能 。
【单选题】Admissions Notice John Washington, We have (150) your completed application form. and all necessary documents and materials and other sources. A preliminary check of the material indicates that you ar...
A.
receives
B.
receiving
C.
receive
D.
received
【单选题】I have lost dangerous goods of IMO-Class III in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
【单选题】清河二中的张校长说：“高三学生从前的那种勤奋学习的精神越来越不多见了，因为我发现目前在我们学校中，高三学生起早摸黑学习的人越来越少了。” 张校长的论证基于以下哪项假设?（ ）
A.
现在的高三学生需要从事的校外活动越来越多
B.
对于高三的学生来说，只有起早摸黑才能确保学习成绩好
C.
高三学生是否起早摸黑学习是评价他们勤奋与否的一个重要标准
D.
清河二中的高三学生学习不勤奋是由于没有好老师
【简答题】II. Translate the following passage into Chinese. I n response to the activities of media consumers who obtain their content through peer-to-peer file sharing and other means not involving a tradition...
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