7750软件系统缺省记录log信息的log-id为()
A.log-id 0
B.log-id 1
C.log-id 99
D.log-id 100
参考答案:C, D
My father _ English now. [ ]
A. reads
B. reading
C. is reading
D. read
已知点P(2m,2)在y轴上,则m=______.