查 * * 直肠凹有无转移结节（）
A．窥阴器检查
B．双合诊
C．三合诊
D．肛腹诊
E．腹部触诊
参考答案：C
It’s high time you ______ .[ ]
A. apply yourself to study
B. apply yourself to studying
C. applied yourself studying
D. applied yourself to studying
K760无齿锯的功率（）。
A.2.2KW
B.2.5KW
C.3.3KW
D.3.5KW
