肉毒碱（化学式为C7H15NO3）是一种具有多种生理功能的物质，被公认为人体必需

简历的客观内容包括（）

A.个人信息

B.受教育经历

C.对本人描述

D.个人成绩

E.对自己的个性描述

下列各组有机物中，两者的一氯代物的种类一定相等的是[ ]

A．正戊烷和正己烷　　　　　　　

B．对二甲苯和2，2-二甲基丙烷

C．甲苯与2-甲基丁烷　　　　　　　　

D．甲苯与2-甲基丙烷

A pregnant client with premature rupture of the membranes has had contractions every 10 minutes. After 48 hours, the contractions stop and the client is to be discharged with home monitoring. The nurse discusses with the client about preterm labor symptoms. Which of the following statements made by the client indicates that she needs further instruction()

A. "I should report contractions that occur every 10 minutes in 1 hour. "

B. "I should lie in bed on my left side if contractions begin. "

C. "I should call the doctor if my contractions occur every hour for 6 hours. "

D. "If I start having contractions, I should empty my bladder. \

进入洁净室的人员不得（）和（）饰物，不得裸手直接接触药品。

建筑施工现场不同层次高度同时进行交叉作业时，应如何管理？