相对于其他运营商,中国移动在哪些方面比较薄弱?()
A.家庭产品数量少
B.家庭产品功能单一
C.固定宽带类产品缺少
D.固定语音类产品缺少
参考答案:A, B, C, D
The small town is so good a place ______ many people come to visit ______ it
has become well known all over the world.
A.that; that
B.as; as
C.that; as
D.as; that
硅藻土型载体,常用的处理方法有()
A.酸洗
B.碱洗
C.硅烷化
D.以上都是