采煤工作面回采结束后,必须在()个月内进行永久封闭。A.1 B.1.5 C.2

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问题:

采煤工作面回采结束后,必须在()个月内进行永久封闭。

A.1

B.1.5

C.2

考点:安全生产知识竞赛煤矿采煤掘进考试煤矿采煤掘进考试题库
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小明做探究“平面镜成像的特点”的实验时,将    (选填“平面镜”或“玻璃板”)竖直放在桌面上(如图所示),取两段同样的蜡烛,把蜡烛A点燃放在它的前方,将蜡烛    (选填“点燃”或“无需点燃”)放置它在后方.

(1)调节蜡烛B的位置,直到     时,蜡烛B的位置即为蜡烛A的像所在的位置;

(2)取两段同样的蜡烛是为了比较   的关系;直尺的作用是为了比较   的关系.

(3)移去蜡烛B,在其原来的位置放一块光屏,此时光屏上     (选填“会”或“不会”)呈现蜡烛的像,从而说明平面镜所成的像是     (选填“虚”或“实”)像.

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补全对话

A: Excuse me, sir,   1   hotel?

B: I am sorry I don't. You may ask that policeman over there.

A: Thank you   2  .

A: Excuse me.  3  ?

C: No, there isn't a hotel near here. But there is one near the Bank of China.

A:   4  .

C: It's about two kilometers away.

A:   5 

C: You'd better take a taxi, because it's so late, there aren't any buses now.

A:   6  .

C: You're welcome.

题型:单项选择题

口疮心火上炎证的首选方剂是()

A.导赤散

B.凉膈散

C.泻心汤

D.泻心导赤汤

E.黄连解毒汤

题型:单项选择题

They were _____ when they heard the _____ news.         [ ]

A. excited, exciting        

B. exciting, excited

C. excited, excited        

D. exciting, exciting

题型:单项选择题

在本案例中,从人力资源管理和沟通管理两方面,分析造成目前现状的可能原因有:

①项目经理老郑在项目组中缺乏 (1) ,并且在 (2) 等方面的软技能不足;

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