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问题 多项选择题

下列室内配线施工工序中，属于镀锌钢管明配的工序有（）。

A.测量定位 

B.支架安装 

C.钢管预埋 

D.钢管连接 

E.管内穿线

答案

参考答案：A, B, D

解析：室内配线的施工程序中，明配管施工程序：测量定位→支架制作、安装→导管预制→导管连接→接地线跨接→刷漆。 考点： 建筑电气工程施工技术

单项选择题

Questions 58 to 62 are based on the following passage: ( 10分)　　According to the airline industry statistics, almost 90% of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before takeoff and ask questions if you have uncertainties. You should fasten your seat belt low on your hips as tightly as possible. Of course, you should also know how the release mechanism of your belt operates. During takeoffs and landings you are advised to keep your feet flat on the floor. Before takeoff you should locate the nearest exit and an alternative exit and count the rows of seats between you and the exits so that you can find them in the dark if necessary.　　In the event that you are forewarned of a possible accident, you should put your hands on your ankles and keep your head down until the plane comes to a complete stop. If smoke is present in the cabin, you should keep your head low and cover your face with napkins, towels, or clothing. If possible, wet these for added protection against smoke inhalation. To evacuate as quickly as possible, follow crew commands and do not take personal belongings with you. Do not jump on escape slides before they are fully inflated, and when you jump, do so with your arms and legs extended in front of you. When you get to the ground, you should move away from the plane as quickly as possible, and never smoke near the wreckage.

According to the experts, when should travelers read and listen to safety instructions

A．Throughout the flight

B．During landings

C．Before takeoff

D．In an emergency
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单项选择题

某服装厂为一饭店加工一批工作服，其制造成本为18万元，同类产品成本利润率为8%，按同类产品售价计算的销售价格为27万元，则该批加工服装计征增值税销项税的依据为( )万元。

A．18
B．19.44
C．19.8
D．27
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