房地产买卖交易的最后一步是()。
A.物业交验
B.合同签订
C.款项支付
D.合同备案登记
参考答案:A
— What about going to the theatre this evening?
— _____. [ ]
A. Help yourself
B. That's all right
C. Good idea
D. Not at all
汽车上液位传感器可以检测的液位主要有()。
A.燃油
B.电解液
C.制动液
D.制冷剂