The word“volatile”in the third paragraph means
A. explosive．
B. transient．
C. unstable.
D. 1ively．
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Wllich of the following is NoT cited as all example of the mayor’S support for tall buildhags？
A. Drivers were charged a toll to enter the city on weekdays．
B. A 40．story tower was completed this year．
C. A handful other tall buildings have received the planning permission．
D. A dozen more tall buildings have been proposed．
Tllle last two paragraphes imply that
A. well-informed people judge a person less accurately than strangers do．
B. people cannot judge a company from the appearance of the boss．
C. a company’S performance depends oil the physiogomy of the boss．
D. the physiognomy of the boss is crucial to the stock market report．
The Sapir一Wrorf hypothesis is about
A. 1aaguage and society．
B. 1anguage and thought．
C. second language acquisition．
D. 1anguage change．
Human language call cope with any subject whatever,and it does not matter how far away the topic of conversation is in time and space．Wbich design feature of language does this phenomenon refer to？
A. Productivity．
B. Cultural transmission．
C. Displacement．
D. Arbitrariness．
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