上腹部绞痛，寒战高热、黄疸，最常见于（） A.胆道蛔虫病 B.胆总管囊肿 C.先天性

阅读理解。

     Most American families like to have a vacation in summer. Summer is a good season for vacation. It is

often hot in July and August.

     Children do not go to school in those two months. Some people like to stay at home, read books, or watch

TV. Many families take their lunch to eat at a place with many trees or a nice lake.

     Some people have enough time and money to travel to other countries like France, Japan and Australia.

They usually fly to these countries. Many families travel by car or train to see interesting places in their own

countries. Their favorite cities are New York, Chicago, Miami, San Francisco and Los Angeles.

     Not everyone likes to go to busy cities. Some families travel to mountains or beautiful valleys.

1. _____ is a good season for vacation.

A. Spring

B. Summer

C. Autumn

D. Winter

2. Many people don't _____ during their vacation.

A. read books

B. travel

C. watch TV

D. go to work

3. Many families like to have their lunch _____ during their vacation. 

A. in the office

B. near a cinema

C. near a big factory

D. near a nice lake

4. If you have _____, you can travel to other countries.

A. money and friends

B. friends and time

C. money and time

D. food

5. Which of the following is NOT true?

A. Summer vacation is about two months long.

B. Some people usually go to other countries to travel.

C. Everyone likes to travel to busy cities.

D. It's often hot in July and August in America.

崩漏的主要病扰是

A．热伤冲任，迫血妄行

B．瘀血内阻，新血不守

C．脾虚气弱，统摄无权

D．冲任损伤，不能制约经血

E．肾气亏虚，封藏失职

不属于循环结构的语句是( )。

A．SCAN…ENDSCAN

B．IF...ENDIF

C．FOR...ENDFOR

D．D0…ENDDO

这个标志是何含义？（）

A．室内停车场

B．露天停车场

C．专用停车场

D．内部停车场

煤中可燃硫通常在全硫中所占比重不大。