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问题 单项选择题

患者患趾暗红，足背汗毛脱落，趾甲变厚，趺阳脉搏动消失，患肢呈持久性静息痛，夜间尤甚，舌质红，苔薄白，脉沉细而涩。诊断为

A．静脉炎
B．雷诺病
C．脱疽
D．糖尿病足
E．以上都不是

答案

参考答案：C

单项选择题

A nurse in the nursery is preparing to perform phenylketonuria (PKU) testing. Which neonate is ready for the nurse to test ？（）

A．A 3-day-old neonate who has been fed IV since birth.

B．A 2-day-old neonate who has been breast-fed.

C．A 1-day-old neonate receiving formula.

D．A breast-fed neonate being discharged within 24 hours of birth.
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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.

10（）

A.valid

B.formal

C.popular

D.legal
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