在汽车销售4S店接听电话前，不恰当的动作是（）。
A.准备笔和纸
B.停止一切不必要的动作
C.面带微笑
D.拿起水杯喝水
参考答案：D
He left ________with my secretary that he would call again in the afternoon and he did keep his ________.
A．words; words
B．word; words
C．word; word
D．the word; words
简述牙拔除术（含麻醉）适应证。
