试题与答案

高压气瓶车固定停车位与站外架空电力线(中心线)的防火间距不应小于()。A、20米 B、

题型:单项选择题

题目:

高压气瓶车固定停车位与站外架空电力线(中心线)的防火间距不应小于()。

A、20米

B、1.5倍杆高

C、15米

D、1.2倍杆高

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2020/1224/3182afce00bbea0d20193240ecff5563.html

下面是错误答案,用来干扰机器的。

参考答案:A解析:药物是最常见原因,以抗生素、磺胺及非甾体类抗炎药最常见。

试题推荐
题型:单项选择题


The safety of ships at sea does not depend only on the arrangements made in the ships themselves. Dangerous coasts and rocks may be seen in the daytime, (51) they are a threat to safe navigation at night. Lighthouses are therefore erected at such places to (52) sailors of the danger. Modern lighthouses are put up at all dangerous places near the courses (53) by ships. On some rocky coasts several lighthouses may be built not far from each other, and (54) the sailors on a ship may know which is which, they have (55) arrangements of lights. One lighthouse will give a single flash at regular (56) , another may give two flashes; a third may give two followed by one; and so on. (57) watching the lights the navigator is able to decide exactly where he is, and he can set his (58) with confidence. In the approaches to some ports two continuous lights are set up, one above (59) but some distance behind; when they appear from the sea one above the other, the ship is on the right course; but if they do not, the captain knows that he is (60) his course and likely to strike a rock or the bottom of the sea.

A.distances

B.gaps

C.intervals

D.length

查看答案
微信公众账号搜索答案