当三极管处于饱和状态时，其集电结与发射结的静态偏置情况为（）。 A.正、正 B.正、

根据对话情景和内容，从方框中所给的选项中选出能填入每一空白处的最佳选项。

Jerry:  Hi , Mike. Look like you’ve got some sun .

Mike: I guess so. I spent the weekend on the beach.

Jerry: Really? That sounds exciting. __小题1:__       

Mike: At my friend’s house .He invited me to stay there for as long as I wanted .

Jerry: __小题2:__                 

Mike: Oh, I have a paper to work on.

Jerry: _小题3:__ I mean besides lying out in the sun.   

Mike: I play some volleyball . I never realized how hard it is to run on sand.

Jerry: _小题4:__ Did you go swimming?        

Mike: I intended to . __小题5:__So I just went fishing.        

Jerry: All sounds so relaxing.

A．What a pity!

B．It must be cool.

C．Where did you stay ?

D．But how did you get there ?E.So what else did you do out there ?

F.But the water wasn’t warm enough

G..Then why not stay there for a longer time?

小儿麻痹症邪注经络治疗首选方剂是：（）

A.三妙丸

B.羌活胜湿汤

C.牵正散

D.补阳还五汤

E.葛根解肌汤

下列哪组是手少阴心经的起止穴（）。

A.极泉、少府

B.中府、少冲

C.天池、中冲

D.极泉、少冲

E.中府、少泽

赤字财政将导致经济衰退。（）

女孩，3岁。幼儿园检查牙齿有洞。患儿有时塞牙。检查：右下第一乳磨牙远中面龋洞 较深，邻间隙内有食物残渣，叩痛(-)，不松动，牙龈未见异常。X线显示右下第一乳磨牙有一龋损接近牙髓，牙根未见异常。

若去尽腐质达牙本质深层，未探及穿髓孔。诊断是（）。

A．中龋

B．深龋

C．急性牙髓炎

D．慢性牙髓炎

E．慢性根尖炎