对意识丧失病人的口腔护理应该:()
A、用棉球沾盐水湿润
B、用棉球沾水湿润
C、用棉球沾消毒液湿润
D、用棉球沾双氧水湿润
参考答案:B
在一棵二叉树上第5层的结点数最多是_______。
A.8
B.16
C.32
D.15
Children under six are not __________to school except those of extraordinary intelligence.
A.permitted
B.admitted
C.accepted
D.received