白塞病除常见的口腔溃疡外，还可出现（） A.手背、手掌虹膜状红斑 B.虹膜睫状体炎，

His father, a famous university professor, who is said to have started his teaching career in Australia, _____ in Nanjing University for more than twenty years.

A．has worked

B．worked

C．is working

D．will work

口腔健康教育中能较快吸引公众注意力的是

A．个别交谈
B．小型讨论会
C．大众传媒渠道
D．组织社区活动
E．健康大讲堂

请问绩效管理中有哪些矛盾冲突应如何化解这些矛盾冲突

随着锅炉容量增大，散热损失相对（）。

A.增大

B.减少

C.不变

D.骤变

理气药的功效是（）

A.理气健脾

B.行气止痛

C.疏肝解郁

D.祛风除痹

E.理气宽胸