According to the passage, e-cigarettes ____

单选题 According to the passage, e-cigarettes _____

A．supply smokers with nicotine more safely
B．help the fastest e-cigarettes-adopter gain sales 1 billion times
C．are mastered by all tobacco firms as a new technology
D．have lured smokers from the big tobacco brands to start ups

参考答案A

解析:细节题。根据题干关键词定位到第四、五段。第四段首句指出“一些新的技术，比如电子香烟承诺提供危害风险更小的尼古丁”，A项中的supply和more safely与首句中的deliver和less riskily是同义替换。因此，正确答案是A。

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单选题The phases "war chests" (Para.5) most probably means_____

A．space
B．funds
C．networks
D．competitors

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单选题The smokers´ attitude toward the consumption ore-cigarettes is _____

A．pessimistic
B．uncertain
C．optimistic
D．doubtful

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单选题What is the passage mainly about?

A．The potency of tobacco's advertising bans.
B．The hostile regulatory climate of tobacco in the U.S..
C．The current situation and challenge of big tobacco firms.
D．The introduction and growth of e-cigarettes.

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