夜间会车须距对面来车（）米以外，将远光灯变为近光灯。
A.200
B.50
C.150
D.100
参考答案：D
— Would you mind my little sister while I am away?
— Of course not. [ ]
A. looking for
B. looking at
C. looking after
D. taking after
作为寻找颏孔标志的牙是（）。
A．
B．
C．
D．
E．或
或