确诊乳腺肿块最可靠的方法是
A．MRI
B．红外线
C．B超
D．活检病理
E．钼靶摄片
参考答案：D
The owner of the shop told his assistant to ______ the pears according to size.
[ ]
A. work out
B. make out
C. sort out
D. figure out
在未办理工作票（）手续以前，值班人员不准将施工设备合闸送电。（）
A.填用
B.许可
C.转移
D.终结
