奔驰配件号查询应进入（）。
A.奔驰EPC
B.奔驰客户端
C.奔驰欧元价
D.奔驰电子目录
参考答案：A
若a＞b，则下列各式中一定成立的是（ ）
A．3a＜3b
B．ac＞bc
C．-a＜-b
D．a-1＜b-1
If you _____ faults but you still want the bicycle, ask the shop assistant to reduce the price. [ ]
A. come across
B. care about
C. look for
D. focus upon
