患者，男性，56岁，患左侧颊癌9个月余，行颊癌切除术并行颈淋巴结清扫术，用肋骨胸大肌

根据对话情景和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项，并在答题卡上将该选项涂黑。选项中有两项为多余项。

A: Hi. You look excited.  小题1:  

B: It is said that a singing contest will be held in our school soon. And I think it a good chance to exercise my singing talents.

A:  小题2:   

B: A pocket radio will be given as a reward to the first prize winner.

A: Are you going to take part in it?

B: Sure.  小题3:  

A: Really? But I don’t think you’ve practiced enough.

B: I’m going to. I bet I can get the first prize.

A:  小题4:  . I think you need to have a music teacher to help you.

B: I don’t think it necessary.  小题5:  

A．By the way, are they giving prizes?

B．People say I have a good voice.

C．I don’t know what others say about it.

D．You can do a lot better next time.E. It’ll turn out fine if I practice a lot.

F. What’s happening?

G. Don’t be so sure.

下列糖中，不具有还原性的是（）

A.葡萄糖

B.蔗糖

C.麦芽糖

D.乳糖

E.半乳糖

下列选项中，既能清热利湿，又能除疳热的药物是

A．黄连

B．胡黄连

C．地骨皮

D．银柴胡

E．柴胡

请简述屯土山关公约三事的情节。

PH值为7的溶液显（）。

A.酸性

B.碱性

C.中性