时谐电磁场

名句大观园（把名言补充完整后，再说说你对这句话的理解）。

1．不精不诚，____________________

意思是________________________________________________________

2．诚者，___________；诚之者，___________。

意思是________________________________________________________

3．有所期诺，___________；有所期约，___________。

意思是________________________________________________________

—Do you know anything about British history?

--- ____ I have no interest in it .

A．Take it easy!

B．Please don’t bother

C．It’s up to you

D．No, it’s beyond me

AIDS的传播方式有（）

A.注射传播

B.母婴垂直传播

C.器官移植

D.与患者同进食

E.输血液制品

The major problem with E-mail is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day. In addition, mail boxes require some management to (74) messages or archive those that might be required later. Senders don’t always know about your E-mail backlog and often send (75) messages.

A. full B. lost C. inundated D. filled

环境应力开裂