试剂质量是保证试验准确的重要因素，有许多指标可用以评价试剂质量，以下选项中哪项是说明

下列物质中① ② ③ ④ ⑤NaHSO₃溶液。

(1)能与NaOH溶液反应的是____________；

(2)能与溴水发生反应的是_____________，

(3)能与金属钠发生反应的是____________；

(4)能发生消去反应的是________________；

(5)遇FeCl₃溶液显紫色的是______________；

(6)能被催化氧化为醛或酮的是___________；

(7)能使酸性KMnO₄溶液褪色的是_________。

For each blank, choose the best answer from the four choices and write down on the answer sheet.
Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (71) , and that it has a mechanism for (72) graphical files. Display text, display graphics, and (73) hyperlinks—there’s 99 percent of the (74) value. That’s not to say that the manufacturers didn’t go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client-side Java applets were supposed to become the preferred (75) for application development Remember frames and all their nasty side effects

A. direct B. navigate C. indicate D. go-on

注册咨询工程师(投资)的基本素质中，多学科、复合型的知识结构包括( )。

A．专业技术知识

B．熟练操作能力

C．外语水习

D．分析判断和处理问题的能力

E．管理科学基础知识

关于重大事故的处理原则，下列表述错误的是（）。

A、不跑、冒、滴、漏，不超温、超压、窜压

B、事故判断要及时准确、动作迅速，请示汇报要及时，相互联系要及时

C、可以就地排放油和气体，防止发生着火爆炸等恶性事故

D、注意保护催化剂及设备

立克次体感染后，发病3周内产生的抗
体是

A．IgA
B．IgG
C．IgE
D．IgD
E．IgM