肾科病人尿液检查应选择的检测方法是()。
A.干化学法
B.干化学法和显微镜检查
C.干化学法和湿化学法
D.湿化学法
E.湿化学法和显微镜检查法
参考答案:E
The manager meant ______ Jack that being late for 5 times meant ______ the company. [ ]
A. to tell; to leave
B. telling; leaving
C. telling; to leave
D. to tell; leaving
已知(m+n)2=11,mn=2,则(m-n)2的值为( )
A.7
B.5
C.3
D.1