关于气管导管的选择，下列哪项不正确（）。 A.为了避免漏气，5岁以下的小儿应选用带套

关于在自然条件下，某随机交配种群中等位基因A、a频率的叙述，错误的是[ ]

A．在某种条件下两种基因的频率可以相等

B．该种群基因频率的变化只与环境的选择作用有关

C．一般来说，频率高的基因所控制的性状更适应环境

D．持续选择条件下，一种基因的频率可以降为零

A woman with a bleeding hand hurried in and asked, “Is there a hospital around _____ I can get some medicine for my wounded hand?”

A．that

B．which

C．where

D．what

甲作为本单位经办人向A企业购买一批民用爆炸物品，交易当天因银行系统原因无法转账，甲为了不耽误时间，就取出现金支付了货款。

Because antianxiety agents such as chlordiazepoxide (Librium) can potentiate the effects of other drugs, the nurse should incorporate which of the following instructions in her teaching plan（）

A. Avoid mixing antianxiety agents with alcohol or other central nervous system (CNS) depressants.

B. Avoid taking antianxiety agents at bedtime.

C. Avoid taking antianxiety agents on an empty stomach.

D. Avoid consuming aged cheese when taking antianxiety agents.