下列属于化疗最常见的副作用是（） A.造血功能障碍 B.恶心、呕吐 C.静脉炎 D.

最早能反映急性心肌梗死发生的酶学检查是（）

A.AST

B.CK

C.CK-MB

D.CK-MM亚型：MM3／MM1比值

E.HBD

读印度图，图中H是印度发展最早的高新技术产业中心，它是（  ）

A．新德里

B．孟买

C．加尔各答

D．班加罗尔

Currently 94% of Web users use either Internet Explorer or Firefox, but recently some new (31) have been developed that are beginning to attract attention. The browser Opera is becoming very (32) because of its speed, it is currently the world’s fastest browser, and because it is much smaller (33) existing browsers (it can almost fit on a single diskette). It can also (34) the last Web page you visited, so the next time you surf, you can start where you left off. And like the big two, you can get it for free; the catch is that you have to watch blinking ads in one comer, or pay ＄40 for the ad-free (35) of Opera.

33（）

A.beyond 

B.so 

C.than 

D.as

《建筑消防安全检测评价技术规程》规定，公共广播扩音机处于（）状态下，自动和手动强制切换火灾应急广播

A.关闭

B.播放

C.关闭和播放

D.不需要设置

在下列关系运算中，不改变关系表中的属性个数但能减少元组个数的是( )。

A．并

B．交

C．投影

D．除