铝电解槽的启动方法基本上有两种,即干法和()。
参考答案:湿法
David dislikes television heroes who smoke, __________?
A.do they
B.don’t they
C.doesn’t he
D.does he
常规头颅CY扫描基线取:
A.听眉线25°
B.听眶线25°
C. 听眉线20°
D.听眶线20°
E.听眶线10°