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问题 单项选择题 A3/A4型题

男性，66岁。吸烟30年，1包／天，慢性咳嗽、咳痰15年，多为白黏痰，每年发作3个月左右，近半年来出现上两三层楼就气短，偶有喘鸣音，近期无明显加重，为明确诊断而就诊。查血WBC7.5×10/L，分叶细胞72%，淋巴细胞26%，嗜酸性粒细胞2%，尿常规正常。

为明确疾病的严重程度及监测病情变化，最有价值的检查是（）

A.胸部X线片

B.肺CT

C.肺功能

D.核磁共振

E.血气分析

答案

参考答案：C

单项选择题

牙槽突骨折的特征性表现是

A．伴牙缺失

B．伴有唇和牙龈的肿胀和撕裂，撕裂口牙与牙相对应

C．咬合错乱

D．摇动损伤区某一牙时，邻近牙及骨折片随之移动

E．伴牙折或牙脱位
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单项选择题

Drug use is rising dramatically among the nation’s youth after a decade of decline. From 1993 to 1994, marijuana use among young people (1) from 12 to 17 jumped 50 percent. One in five high school seniors (2) marijuana daily. Monitoring the Future, which (3) student drug use annually, reports that negative attitudes about drugs have declined for the fourth year in a row. (4) young people see great risk in using drugs. Mood-altering pharmaceutical drugs are (5) new popularity among young people. Ritalin, (6) as a diet pill in the 1970s and now used to (7) hyperactive children, has become a (8) drug on college campuses. A central nervous system (9) , Ritalin can cause strokes, hypertension, and seizures. Rohypnol, produced in Europe as a (10) tranquilizer, lowers inhibitions and suppresses short-term memory, which has led to some women being raped by men they are going out with. (11) taken with alcohol, its effects are greatly (12) . Rock singer Kurt Cobain collapsed from an (13) of Rohypnol and champagne a month before he committed (14) in 1994. In Florida and Texas, Rohypnol has become widely abused among teens, who see the drug as a less expensive (15) for marijuana and LSD. Alcohol and tobacco use is increasing among teenagers, (16) younger adolescents. Each year, more than one million teens become regular smokers, (17) they cannot legally purchase tobacco. By 12th grade, one in three students smokes. In 1995, one in five 14-year-olds reported smoking regularly, a 33 percent jump (18) 1991. Drinking among 14-year-olds climbed 50 percent from 1992 to 1994, and all teens reported substantial increases in (19) drinking. In 1995, one in five 10th graders reported having been drunk in the past 30 days. Two-thirds of high school seniors say they know a (20) with a drinking problem.

8（）

A.amusing

B.relaxing

C.recreational

D.pleasant
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