Je5A2213硬质合金钻进的冲洗液泵量,按钻头直径计算宜为每厘米()L/min。
(A)9~16;
(B)7~14;
(C)5~12;
(D)3~9。
参考答案:C
根据句意及首字母提示补全句子。
1.They are having a good t________ in the party.
2.The opposite of right is w________.
3.The brothers are f________ with each other because of the money that are left by their parents.
4.The police jumped into the river in order to s________ the little boy.
5.He is a very p________ teacher.All the students like him.