可选择作用于T细胞活化初期，抑制白细胞介素-2和干扰素生成的是（） A.环孢素 B.

The report was so _____ that they were all _____.

A．inspiring; exciting

B．inspiring; excited

C．inspired; excited

D．inspired; exciting

After the long journey, the Smiths returned home, ________.[ ]

A. safely but tired  

B. safe but tired

C. safe and tiring  

D. safely and tiring

Anna is not my sister. __ my cousin.

A．He

B．He’s

C．She

D．She’s

划分高低压交流电时，是以对地电压大于或小于（）数值为界。

A、1000v

B、500v

C、250v

D、1500v

血压值达到（）以上，就可以诊断为高血压。