焦油洗涤中所得的酚盐有两种即碱性酚盐和()。
参考答案:中性酚盐
I hope ______ tomorrow.[ ]
A. him to come
B. he will come
C. he to come
D. he comes
反蛙泳配合动作,两臂前移的同时()。
A.边收边分慢收腿
B.先收后分慢收腿
C.边收边分快收腿
D.先收后分快收腿