如图所示为一理想变压器,它的原线圈接在交流电源上,副线圈接有一个标有“12 V

题型:填空题

问题:

如图所示为一理想变压器,它的原线圈接在交流电源上,副线圈接有一个标有“12 V  100 W”字样的灯泡,已知变压器原、副线圈的匝数比为18∶1,那么小灯泡正常工作时,图中的电压表的读数为________ V,电流表的读数为_____ A

考点:变压器电压、电流、电功率与匝数的关系
题型:填空题
化简:
1
a
=______.
题型:填空题

若等腰三角形一腰上的高等于腰长的一半,则这个等腰三角形的底角为      .

题型:填空题

既能消食化积,又能行气散瘀的药物是()

A.麦芽

B.番泻叶

C.谷芽

D.枳实

E.山楂

题型:填空题

On June 21, 1982, Prince (王子) William, the future King of England, was born. Since then, he has won all the hearts of the public.

When he was very small, he got a number of nicknames (绰号):King Tot, Willys, Billy, and William the Terrible!He was often found climbing into wastebaskets, trying to flush (冲刷) Dad’s shoes down the toilet (厕所) and pressing buttons, which often made alarm ring!

Prince William has a lot of rules to follow:no drinking in public, no smoking or taking drugs, no kissing girls in public. William was especially close to Diana. However, he has been brave beyond his years since his mother’s sudden death because of the car accident.

Prince William’s fans are growing in number every day. He got more than 12, 000 fan letters a week. When he made a trip to Canada, thousands of girls went frenetic and screamed, “William, will you marry me?” His favorite drink is coke and his favorite foods are burgers, fries, pizza, and chocolate. William also loves to search the World Wide Web. So next time when you’re online, you might be chatting with the future King of England.

Want to write to him? Here it is:

HRH Prince William             

Kensington Palace  Kensington, London W8 4PN  Great Britain

小题1:William’s mother died when he was_____.     .

A. 13                   B. 20                C. 19                  D. 15

小题2:What does the underlined word “frenetic” mean?  

A. Angry.               B.Excited.           C. Stupid.                D. Comfortable.

小题3:Which of the following is NOT TRUE according to the passage?

A. Prince William loves his mother very much.   

B. Prince William likes western food.

C. Prince William has two brothers.    

D. Prince William loves to use the computer.

小题4:Where can you probably see the article?

A. In a magazine       B. In a textbook      C. In a sports report   D. On TV

题型:填空题

※ [11~13] . ( 4 )

A. .

B..

C. .

D..

更多题库