主页
学科
搜索
账户
常见问题
当前学科：设备安装工程
题目：
单选
安防监控中心内应设臵接地汇集环或汇集排，汇集环或汇集排宜采用裸铜线，其截面积应不小于（）mm2。
A . 2.5
B . 10
C . 16
D . 25
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
散斗
下列属于特异外汇期权交易的有()
柴葛解肌汤的功用是（）
工会应当划分会计期间（）和编制会计报表。
根据材料，完成题。 Fitness Movement The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise.Millions of individuals became engaged in a variety of aerobic activities, and51thousands of health spas developed around the country to capitalize on his52interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed53to this aerobic fitness movement, even a national chain with spas in most major cities. However, their54was not on aerobics, but rather on weight-training programsdesigned to develop muscular mass, 55, and endurance in their primarily male56. These fitness spas did not seem to benefit57from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs58few, if any, health benefits. In recent years, however, weight training has again become increasingly. 59for males and for females. Many60programs focus not only on developing muscular strength and endurance but on aerobic fitness as well.61, most physical fitness tests have usually included measures of muscular strength and endurance, not for health related reasons, butprimarily62such fitness components have been related to performance in athletics.63, in recent years,evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health64as well. The American College of Sports Medicine now65that weight training be part of a total fitness program for healthy Americans.请在第__(51)__处填上正确答案。
D3D9中粒子的表现图元是()。
一42岁男性患者，因患慢性阑尾炎拟在硬膜外麻醉下实施阑尾切除术。既往有高血压病史，曾服用降血压药，药名不详，现已停药两周，胜任一般家务劳动和日常工作。查体：血压180/110mmHg，心界向左下扩大，a>P。HR108次/分，ECGⅡ、Ⅲ、avFS-T段水平下移0.15mV。高血压病人择期手术的时机是什么?该病人术前存在哪些使麻醉手术风险增加的因素?高血压病人在硬膜外麻醉早期发生低血压最常见的原因是什么?高血压病人在硬膜外麻醉早期预防低血压的措施是什么?该病人在围手术期间如血压进一步升高，可发生什么危险?
金融抑制
刑罚是对犯罪分子适用的一种法律制裁措施。下列对刑罚特征的表述中，正确的有（）