以下选项中不属于EDI系统的三要素的是【 】A．EDI软件及硬件 B．通信网络

机动车在高速公路上遇前方交通受阻时，应当跟随前车顺序排队，并立即开启危险报警闪光灯，防止追尾。

A client who is planning a pregnancy asks the nurse about ways to promote a healthy pregnancy. Which of the following would be the nurse’s best response

A. "Pregnancy is a human process; you don’t have to worry. "
B. "You practice good health habits; just follow them and you’ll be fine. "
C. "There is nothing you can do to have a healthy pregnaney; it’s all up to nature. "
D. "Folic acid, 400 mcg(1mcg= 10μg), improves pregnancy outcomes by preventing certain complications. "

抢救治疗氨基甲酸酯类杀虫药中毒者，哪项不正确（）

A.使用胆碱酯酶复活剂

B.立即脱离接触毒物现场

C.应用阿托品

D.用肥皂水清洗皮肤

E.用2%碳酸氢钠溶液洗胃

毛 * * 思想的精髓是（）。

A.群众路线

B.统一战线

C.实事求是

D.武装斗争

简述居住用地的组成。