主页
学科
搜索
账户
常见问题
当前学科:电工复审
题目:
判断题
漏电保护器后面的工作零可以重复接地。
A . 正确
B . 错误
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:
晶体沉淀的沉淀条件有哪些?
鉴别原发性和继发性胆汁性肝硬化的首要检查方法是()
各级分公司要加强客户维护,定期(不少于()次/年)举办客户座谈会、联谊会等形式,与客户增加情感交流,提升客户满意度和忠诚度。
Wise buying is a positive way in which you can make your money go further. The ()you go about purchasing an article or a service can actually ()you money or can add ()the cost. Take the ()example of a hairdryer. If you are buying a hairdryer, you might ()that you are making the ()buy if you choose one ()look you like and which is also the cheapest ()price. But when you get it home you may find that it ()twice as long as a more expensive ()to dry your hair. The cost of the electricity plus the cost of your time could well ()your hairdryer the most expensive one of all. So what principles should you ()when you go out shopping? If you ()your home, your car or any valuable ()in excellent condition, you’ll be saving money in the long () Before you buy a new (),talk to someone who owns one. If you can, use it or borrow it to check it suits your particular () Before you buy an expensive (),or a service, do check the price and ()is on offer. If possible, choose ()three items or three estimates. 请在第()处填上正确答案。 查看材料
下列具有利尿作用的药物是()。
借款人为个人的商业用房抵押贷款的条件之一是已经支付不低于所购商业用房全部价款的40%作为首付款。
既是我国法律体系的根本大法,也是教育类法律的根本大法的是()。
办公家具生产商斯迪凯思(steelcase)最近推出了如图12—2所示的新产品,一个管理会场的互动信号系统。这一系统适合六类新产品中的哪一种?解释一下。
抹香鲸为什么与大王乌贼搏斗?
患者,女,35岁,腰痛伴左下肢放射痛3个月,脊柱侧凸,左小腿肌肉萎缩,足背感觉下降,左直腿抬高试验(+),X线平片示L5至S1椎间隙稍狭窄。下列治疗方法不恰当的是()