支气管哮喘发病的激发因素有（） A.各种特异和非特异吸入物 B.感染 C.药物：如心

公关人员应具备什么样的公关意识和心理素质？

用所给单词的适当形式填空。

1. My mother is used to              (go) shopping on Sundays.

2. They go out of their way to make me ____      (feel) at home.

3.I find it difficult              (understand) everything.

4. His bike is              (difference) from mine.

5. There is no reason___         (come) to school late today.

---How far is it _______ your home _______school?

----About 2 kilometers.

A．from, to

B．between, and

C．from, at

D．at, to

There ________ a pool, but now there stands a tall building instead.          [ ]

A. used to be              

B. used to has                

C. use to be

（）的主要特点是空间层次变化较大，节奏感和韵律感较强，有活力、有趣味。

A．地台空间

B．交错空间

C．开敞空间

D．流动空间