热水管道的正确安装顺序是（）。
①水平横干管；②立管；③水平横支管

听力原文：M: Hi, Betty! Would you like something to drink? Y...

单项选择题听力原文：M: Hi, Betty! Would you like something to drink? You are sweating!
W: Oh, thank you! I have to work hard since I have put on a lot of weight recently.
Q: Where does the conversation take place?
(14)
A．In the gymnasium.
B．In the office.
C．In the restaurant.
D．In the hospital.

听力原文：W: Could I borrow some money from you? I want to b...

单项选择题听力原文：W: Could I borrow some money from you? I want to buy a summer dress.
M: You must be kidding! I haven't paid my rent for this month.
Q: Whet does the man mean?
(15)
A．He would like to lend some money to the woman.
B．He thought the woman shouldn't buy a summer dress.
C．He is also short of money.
D．His money has been used to pay for the rents.

低压配电箱包括（）。A.动力配电箱B.照明配电箱C.高压开关柜D.动力分配箱

多项选择题低压配电箱包括（）。