药物非临床安全性评价机构必须遵守 A．处方药与非处方药 B．C批准上市药品 C．毒麻

阅读短文，从方框中选择适当的单词填空。（每词限用一次）

It was a (1) ___________ day during the summer holiday. My mother and I got on the bus to my grandma’s village. It was (2) ___________ dry that I was really thirsty. I began to think of the sweet watermelons and other (3) ___________ in Grandma’s house. I could hardly wait to arrive there.

(4) ___________ took us two hours to get there . Grandma brought out a big watermelon and cut it. It was nice to eat the watermelon (5) ___________ such a hot day.

患者，女，24岁，因停经7周行人工流产术，术中出现心动过缓、血压下降、面色苍白、出汗、胸闷等。此时最恰当的处理应是

A．肌注肾上腺素
B．静脉注射阿托品
C．立即输液并输血
D．静脉滴注间羟胺
E．终止手术，待病情好转再进行

新生儿和婴幼儿，心电图QRS综合波以_______占优势，随着年龄增长逐渐转为________占优势。

计算机使用总线结构的优点是便于实现积木化，同时减少了信息传输线的条数，其缺点是 ( )

A．地址信息、数据信息、控制信息不能同时出现

B．地址信息与数据信息不能同时出现

C．信息传输的速度较慢

D．两种信息源的代码在总线中不能同时传送

美国人用餐的戒条中，下面哪项是不正确的？（）

A.不允许进餐时发出声响

B.可以替他人取菜

C.不允许向别人劝酒

D.不允许当众脱衣解带