在伦理观上孟子主张“性本善”，苏格拉底也认为“善是人的内在灵魂”。为了扩充人的善性，

根据对话内容，在空白处填写适当的话语（话语可能是一个句子，也可能是一个短语或一个词），使对话完整。

Boy:  Hello, Mrs Tan.  I'd like to be a volunteer.   _ 1     ?

Woman: Sure. What kind of volunteer work?

Boy:  Well, I like working with kids.    

Woman: Do you know _   2   _? We need someone to help teach kids to play basketball.

Boy:  No, I don't really like basketball.  Is there anything else?

Woman: Sure.  There's a job cleaning up the parks.  It's every Sunday.

Boy: That's no good.  I have to      3      my grandmother on Sundays.

Woman:  I see.  Here's another job.  Car you fix up bicycles ?

Boy:     4      . I can't even fix up my own bicycle.

Woman: Ummm.  We need someone to read to people at the hospital.  You can do it any day you like.

Boy:      5     .  When do I start ?

Woman: How about today '

Boy: OK.

败血症一经诊断，抗菌药物应用应注意（）

A.在获得病原学结果之后应根据药敏结果用药

B.应用杀菌药，宜静脉联合用药

C.剂量宜大，疗程宜长

D.一般应用4周或体温下降至正常，临床症状消失后3周停药

E.在未获得病原学结果之前应予以经验用药

组成核酸的基本单位（）。

A．含氮碱基

B．单核苷酸

C．多核苷酸

D．核糖核苷

E．脱氧核糖核苷

EGC调制方式为（）.

A、FSK

B、BPSK

C、4PSK

D、PCM