冰片的功效是（） A.开窍辟秽，止痛 B.开窍宁神，化湿和胃 C.开窍醒神，清热止痛

肾性贫血的原因包括（）

A.红细胞生成素产生减少

B.红细胞生存时间缩短

C.尿毒症毒素对骨髓的抑制

D.厌食、腹泻等原因使造血原料不足

E.以上都不是

Be sure___him about the bad news. [ ]

A. to not tell 

B.not to telling 

C. not to tell  

D.to not telling

To keep certain information private and secure while providing remote access for employees, many businesses are creating intranets. An intranet is an (71) organizational internet that is guarded against outside access by a special (72) feature called a firewall (which can be software, hardware, or a combination of the two).

A．outside

B．external

C．internal

D．inside

房地产投资信托基金股票的收益通常高于一般股票的收益，因此往往成为大型机构投资者直接投资房地产的重要工具。 (　　)

对耐甲氧西林金黄色葡萄球菌（MRSA）引起的肺炎，首选抗生素是（）

A.青霉素G

B.头孢唑啉

C.苯唑西林

D.万古霉素

E.头孢呋辛