单选题

单选题 According to the report, smoking three or four cigars a day__________

A、 increases the risk of oral cancer for non-smokers
B、 greatly increases the risk of oral cancer for smokers
C、 increases the risk of more than one cancer for non-smokers
D、 greatly increases the risk of more than one cancer for smokers

【正确答案】 D

【答案解析】

单选题 In the passage how many cancers are mentioned in relation to smoking cigars Aaily?

A、 Six.
B、 Seven.
C、 Eight.
D、 Nine.

【正确答案】 B

【答案解析】

单选题 What is the main idea of the article "Cigars: Health Effects and Trends"?

A、 When it comes to cancer, cigars are not any safer than cigarettes.
B、 Cigars may be addictive while cigarettes are not easily so.
C、 Cigars contain less harmful substances than cigarettes.
D、 Increase in cigar-smoking does not affect public health much.

【正确答案】 A

【答案解析】

单选题 What is the doctors' advice to those cigar-smokers?

A、 To give it up completely.
B、 To give up part of it.
C、 Not to think about it any more.
D、 To cure the diseases first.

【正确答案】 A

【答案解析】

单选题 In the context of this passage, "secondhand smoke" means__________

A、 smoking bad-quality cigars
B、 smoking very cheap cigars
C、 being near cigar smokers when they are not smoking
D、 being near cigar smokers when they are smoking

【正确答案】 D

【答案解析】