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【判断题】
相对性原理是狭义相对论的基本原理之一。A.
正确
B.
错误
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【单选题】The reason why many American young people were involved in the social movements of the 1960s was that ____.
A.
They resented traditional white male values in US society.
B.
They love America so much.
C.
They thought they knew better than their teachers.
D.
They viewed the adult world with grave doubt.
【单选题】分别用(1)铂黑电极,(2)光亮铂电极,(3)铁电极,(4)汞电极,电解 硫酸溶液,若电极极片的大小和外加电压相同,则反应速度次序是
A.
(4) > (3) > (2) > (1) ；
B.
(2) > (1) > (3) > (4) ；
C.
(1) > (2) > (3) > (4)
D.
(4) > (2) > (3) > (1)
【单选题】Why do teens drink? Reasons vary from ______ pressure to family patterns to social conditioning.
A.
spouse
B.
peer
C.
antagonist
D.
competitor
【单选题】在电极面积和外加电压都相同的情况下,分别用(1)汞电极,(2)铁电极,(3)光亮铂电极,(4)镀有铂黑的铂电极来电解水制备氢气,反应速率大小次序为
A.
（1）〉（2）〉（3）〉（4）
B.
（3）〉（1）〉（2）〉（4）
C.
（2）〉（1）〉（4）〉（3）
D.
（4）〉（3）〉（2）〉（1）
【单选题】Why does the professor say this:
A.
To illustrate the social importance of the hallway
B.
To explain how walls determine who may enter a room
C.
To point out that homes are larger than in the past
D.
To describe the flow of traffic in the typical home
【简答题】分别用 (1) 铂黑电极, (2) 光亮铂电极, (3) 铁电极, (4) 汞电极,电解硫酸溶液,若电极极片的大小和外加电压相同,则反应速度次序是: A . (4)>(3)>(2)>(1) ; B . (2)>(1)>(3)>(4) ; C . (1)>(2)>(3)>(4) ; D . (4)>(2)>(3)>(1) 。
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