声带癌侵犯声门下的标准是肿瘤向下超过声带突（）。
A.1mm
B.3mm
C.4mm
D.5mm
E.10mm
参考答案：D
电子资金传输
Between classes, students usually have _______ break. [ ]
A. ten minute's
B. a ten minutes'
C. a ten-minute
D. ten-minute's
