生产、使用易燃易爆化学物品的建筑消除火灾爆炸的方法有（）。A、加强通风 B、合理采暖

日本が金持ちになったと言われても、日本人の生活（　）はまだまだ高いとはいえません。

A．標準

B．基盤

C．水準

D．基準

短文改错

     Allow me, first of all, on behalf of (代表)my teachers and classmates give a warm welcome to all of

you from London. It gave us a great pleasure to have you in our school for a brief visit. You will be glad to see how well we Chinese students are getting along with their English learning. We think it bridge to the

friendship between us and the people throughout the outside world. But, you know, there is still some

students, most of which are boys of science, learn English with much trouble. So, we hope you would give us some more advice on the language study. Let me wish you a pleasant stay here. May your visit goes

successfully.

________________________________________________________________________________

慢性溶血发生再生障碍危像可表现为()

A．全血细胞减少，网织红细胞增多

B．全血细胞减少，网织红细胞减少或消失

C．病情加剧，骨髓增生极度活跃

D．病情加剧，骨髓增生低下

E．应与再生障碍性贫血鉴别

挑取日最大风速，可跨日、跨月、跨年挑取，但只能（），不能（）。

微软公司的Windows操作系统中，下面哪个是桌面PC操作系统（）。

A.Windows NT Server

B.Windows 2000 Server

C.Windows Server 2003

D.Windows XP