[单项选择]The ill luck associated with 13 is supposed to have its origin in ______.


A. legend
B. religion
C. popular belief
D. certain customs

[单项选择]The ill luck associated with 13 is supposed to have its origin in ______.


A. legend
B. religion
C. popular belief
D. certain customs

[单项选择]The bad luck associated with 13 is supposed to originate from ______.


A. religion
B. legend
C. folklore
D. popular belief

[单项选择]HAV的主要传播途径是
A. 母婴垂直传播
B. 吸血昆虫叮咬
C. 呼吸道传播
D. 消化道传播
E. 泌尿生殖道传播

[单项选择]What effect does excessive positive ionization have on some people


A. They think they are insane.
B. They feel rather bad-tempered.
C. They become violently sick.
D. They are too tired to do anything.

[单项选择]

TEXT D
Temporary Employment
Some observers have attributed the dramatic growth in temporary employment that occurred in the United States during the 1980’s to increased participation in the workforce by certain groups, such as firsttime or reentering workers, who supposedly prefer such arrangements. However, statistical analyses reveal that demo-graphic changes in the workforce did not correlate with variations in the total number of temporary workers. Instead, these analyses suggest that factors ’affecting employers account for the rise in temporary employment. One factor is product demand: temporary employment is favored by employers who are adapting to fluctuating demand for products while at the same time seeking to reduce overall labor costs. Another factor is labor’s reduced bargaining strength, which allows employers more control over the terms of employment. Given the analyses, which reveal that growth in temporary employ
A. encouraging equitable pay for temporary and permanent employees
B. getting firms to offer temporary employment primarily to a certain group of people
C. ensuring that temporary workers obtain benefits from their employers
D. faciliating the organization of temporary workers by labor unions

[单项选择]男性，26岁。2个月前因肝炎住院。近日门诊复查。ALT30U，HAV-IgM（-），HAV-IgG（+），抗HBs（+），抗HBc（+）。此时可诊断为（）
A. 乙型肝炎恢复期与甲型肝炎感染后状态
B. 乙型肝炎急性期与甲型肝炎感染后状态
C. 甲型肝炎恢复期
D. 甲型肝炎与乙型肝炎混合感染
E. 丙型肝炎

[单项选择]The reason Hamilton accepted the challenge may have been ______.


A. he was too angry to think clearly
B. he wanted to kill Burr
C. he was urged by his supporters to do so
D. he felt it was a matter of honor

[单项选择]How many provinces and territories does Canada have


A. Two provinces and ten territories.
B. Six territories and six provinces.
C. Ten provinces and two territories.
D. Eight provinces and two territories.

[单项选择]With the population explosion, scientists will have to ______ new methods of increasing the world's food supply.
A. come up with
B. carry out
C. lead to
D. stick to

[单项选择]According to the author, anthropologists would have all culture viewed ______.


A. comparatively
B. independently
C. intrinsically
D. hierarchically