男性，30岁，车祸伤30min。体格检查：发绀，烦躁不安，呼吸困难。左侧大块胸壁软化

若两个关于x的整式x²+（a+b）x+5b与x²-x-30恒等，则a=      ，b=         ．

动词填空（本大题共10分，每小题1分）

A year ______________ (divide) into 52 weeks.

The maths problem is not easy enough for each of us ______________ (work) out.

When I got to the station, my friends ___________ (wait) for me.

It’s silly of you ___________ (not forgive) others for their mistakes.

Most boy school students have their hair __________(cut) once a month.

I would rather sell the old house _____(buy) a new one.

You should be confident enough _________ (take) this job. You’re the most suitable person.

The pupils are having fun      __  (make)cassettes..

Some day the scientist ____________ (clone) every living thing.

10. They_________(treat) well when they became sick.

项目社会影响评价的内容包括( )。

A．就业影响

B．地区收入分配影响

C．居民的生活条件和生活质量

D．专家的评价

E．受益者范围及其反映

新技术的工业化过程可分为三个阶段（）。

A.调研阶段

B.研究、研制阶段

C.试制试生产阶段

D.工业化生产阶段

下列RNA中，参与形成小分子核糖核蛋白体的是

A．hnRNA

B．mRNA

C．snRNA

D．tRNA