试题与答案

发光二极管和普通二极管一样除具有______导电的特性外.还在电流通过时____

题型:填空题

题目:

发光二极管和普通二极管一样除具有______导电的特性外.还在电流通过时______,且电流大时较______,电流小时较______.因此,______ 常用在指示电路中.

答案:

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题型:阅读理解

阅读理解。

     Western New Bridge Library Announcement

      2008-3-10

     Shortened Library Hours for Spring Break

      Library Hours have been shortened to 7hours a day (9:00a. m. -4:00p. m.)for spring Break from March

24 to March 30. Coming Events

     ●On Monday, March 24, at 10:30am., Scott Sutton, a children's writer, will tell stores to kids over seven.

Sutton's attractive style will surely inspire everyone present!

      ●At 1:00pm. On march 26, the Georgetown musicians will present an Irish folk concert, which will be

entertaining for the entire family. come for the music and stay to check out some relevant books for the rest

of the week!

     ●On Thursday, march 27, at 2:00pm., the annual children' gathering will take place in room 201, the

second-floor. pick up an invitation in the children's room and return your RSVP (回复) to reserve your at the

table by 3:00 pm. On Tuesday, march 25. Only children are allowed in the gathering.

     ●At 10:30am. On Friday, March 28, Enzo Monfre of the hit kids' science show, ENZOology, will bring

Fossils live! Surely Enzo will take the audience back in time, deep beneath the surface of the earth, to uncover

the mysteries of killer dinosaurs, and more. Enzo recently appeared on the Ellen DeGeneres Show- come and

see him at the library!

     Please note: In case of emergency, please call the Help Desk at 926-3736 and follow the procedures

outlined on the voice message. The call-down service is staffed 24 hours a day, 7 days a week for

emergencies. The Help Desk supplies service to you all the year round! For questions about all these, please

contact hld@wnbl . org. Come for the great Fun;

     Stay for the relevant Books!

1. To attend the annual Children's Gathering, one has to _____.

A. buy a ticket

B. apply in advance

C. make a reservation

D. contact the call-down service

2. According to the passage, Enzo Monfre will _____.

A. show the children around a zoo

B. tell stories to children over seven

C. be present at the science show in preson

D. lead the children to the Ellen DeGeneres Show

3. The Help Desk in this library supplies service _____.

A. only during the daytime

B. in case of emergency

C. till the end of the Spring Break

D. after 22:00 p. m. every day

4. We can learn from the passage that children can _____.

A. attend all the activities with their parents

B. borrow some relevant books for the activities

C. participate in the activities from 8:00 a. m. to 4:00 p. m.

D. choose only one of the activities according to their interest

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