胆石症的患者出现胆绞痛时禁用

In the United States, Halloween is night-time ______ holiday.

A．children's

B．men's

C．women's

D．old men's

Halloween customs came to the United States from Britain.()

A、summer festival

B、night-time festival

C、sweethearts’ holiday

D、pilgrims holiday

A、the maltreatment of minorities in the United States

B、the political intervention of the United States in other countries

C、the military expansion of the United States

D、the conformity and repression of the United States

The Gilded Age refers to

A．the United States in 1820s.

B．the United States in early 20th century.

C．the United States in 1950s.

D．the United States in late 20th century.

A．The United States.

B．Canada.

C．No country.

D．Both the United States and Britain.

Which of the following would be the best title for this passage？

A．Types of Doctors in the United States

B．Health Care in the United States and Britain

C．Treatment of Sick Children in the United States

D．Medical Insurance in the United States and Britain

B.生产专业化

C.产品商品化

D.管理企业化、服务社会化

B.标准假彩色合成

C.假彩色合成

D.伪彩色合成