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A．The number of smokers has been falling about

2022-08-05 17:08:21 问答库阅读 170 次

问题详情

A．The number of smokers has been falling about 2 percent a year.
B．The number of smokers has been rising 20 percent a year.
C．The number of smokers has been rising 2 percent a year.
D．The number of smokers has been failing 20 percent a year.

参考答案

正确答案：C
解析：细节听辨题，文中出现两种情况，一是在industrial countries(发达国家)吸烟者人数下降，而在 developing countries(发展中国家)吸烟人数上升。连词but在此有提醒作用。