检查时应检查下列内容,但不包括()。
A.胎的类型
B.有无拥挤错位
C.牙列是否完整
D.覆、覆盖关系
E.夜磨牙习惯
参考答案:E
Many things _____ impossible in the past are quite common nowadays.
A.having considered
B.considered
C.to be considered
D.considering
青藏高原把西风环流分为()和()两支,使其范围扩大。