根据性质判断的变形推理，可以由“所有大学教师都是知识分子”推出的新判断是（） A.所

已知大气压强为75厘米水银柱高，在图所示的装置中，如果管内气体压强为35厘米水银柱高，则管内外水银面高度差为______．

Following a year of fast development, by the first quarter of this year, China has had about 1,100 e-commerce websites .

A．China had about 1,100 e-commerce websites by the end of last March

B．by the end of the first quarter of this year, China has had about 1,100 e-commerce websites

C．by the end of this recent past March, China has about 1,100 e-commerce websites

D．by the end of this first quarter, China had about 1,100 or so e-commerce websites

高泌乳素血症的药物治疗首选

A．赛庚啶

B．溴隐亭

C．奥曲肽

D．酮康唑

E．黄体酮

既能治疗惊风，癫痫抽搐，又能治疗肺热哮喘的药物是（）。

A.天麻

B.地龙

C.全蝎

D.僵蚕

动设备的基础混凝土强度不低于设计强度的（）才能进行设备安装工作。

A、50％

B、75％

C、90％

D、100％