在运动员发球触网后落在界内,司线员要呼报()。
A.Out
B.Fault
C.Net
D.Service
参考答案:C
My good friend is going to_____Canada next month. Because his parents will work there. [ ]
A. leave
B. move
C. be
D. move to
合同质量要求不明确的,首先选择______标准履行。
A.行业B.供货方C.收货人D.待定的符合合同目的的