对于新病人内舒拿需要几小时可迅速缓解鼻塞？（） A.3h B.5h C.7h D.9

用于分割需要立即响应优先级的帧是（）。

A.SIFS

B.PFIS

C.DIFS

A central bank can control the money of stock by:Ⅰ. establishing reserve requirements for depository institutions Ⅱ. buying and selling government securities in the open market Ⅲ. setting the interest rate at which it will loan funds to commercial banks and other depository institutions Which of the following is FALSE（）

A. Ⅰ only.

B. Ⅱ only.

C. none.

血清钾增高出现软瘫的顺序是（）

A.四肢肌→躯干肌→呼吸肌

B.四肢肌→呼吸肌→躯干肌

C.躯干肌→呼吸肌→四肢肌

D.躯干肌→四肢肌一呼吸肌

E.呼吸肌→四肢肌→躯干肌

细菌的病毒叫什么？（）

A、植物病毒

B、动物病毒

C、噬菌体

D、真菌病毒

导游员讲解时注视游客的目光应该以（）为宜。

A.正视和平视

B.正视和环视

C.正视和仰视

D.正视和俯视