WTC瓦斯突出参数仪在采样过程中出现漏气主要原因有（）。
A.煤样罐密封坏
B.煤样罐盖得太紧
C.煤样罐连接胶管坏
D.仪器问题
参考答案：A, C, D
Your company CEO just sent you an E-mail asking you to make a … on your project , which has been in progress for 10 months , to all Identified internal and external stakeholders. He scheduled the presentation for next Monday.You expect more than 50 people to attend. The first step in preparing the presentation is to ( ).
A. define the audience
B. determine the objective
C. decide on the general form of the presentation
D. plan a presentation strategy
汽车库、修车库、停车场室内消火栓应设在明显易于取用的地点，栓口离地面高度宜为（）m，其出水方向宜与设置消火栓的墙面相垂直。
A、0.9
B、1.0
C、1.1
D、1.2
