Z5125型立钻的最大钻孔直径为（）mm。
A.φ5
B.φ25
C.φ125
D.φ5125
参考答案：B
It takes ______ people ______ the work. [ ]
A. hundreds of, finishing
B. hundred of, to finish
C. hundreds of, to finish
D. hundred of, finishing
被称为面侧深区钥匙的是
A．翼丛
B．颌内动脉
C．下颌神经
D．翼外肌
E．面深淋巴结
