检查10岁儿童的牙列,尚未完全萌出的牙是()
A.
B.
C.
D.
E.
参考答案:D
两个邻补角的角平分线的位置关系是______.
Bring the flowers into a warm room _____ they'll soon open. [ ]
A. or
B. and
C. but
D. for