(4分)两性氢氧化物是(写化学式)。 写出该物质与氢氧化钠溶液反应的化学反应方程

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问题:

(4分)两性氢氧化物是(写化学式)          

写出该物质与氢氧化钠溶液反应的化学反应方程式为                         

考点:氧化钠单质钠其他钠盐(氯化钠、硫化钠、氮化钠等)过氧化钠
题型:填空题

Passage 1

The information Highway is the road that links computer users to a large number of on-line services; the Web, e-mail, and software, to mention just a few. Not long ago, the information Highway was a new road, with not many users. Now, everyone seems to want to take a drive, with over 30 million families connected worldwide. Not surprisingly, this well-traveled highway is starting to look like a well-traveled highway. Traffic jams can cause many serious problems, forcing the system to close down for repair. Naturally, accidents will happen on such a crowed road, and usually victims are some files, gone forever. Then, of course, there’s Mr. Cool, with his new broad-band connection, who speeds down the highway faster than most of us can go. But don’t trick yourself; he pays for that speeding.

Passage 2

Want to know more about global warming and how you can help prevent it? Doctor Herman Friedman, who is considered a leading expert on the subject, will speak at Grayson Hall next Friday. Friedman studied environmental science at three well-known universities around the world before becoming a professor in the subject. He has also traveled around the world observing environmental concerns. The gradual bleaching (变白) of the Grate Barrier Reef, which came into the public eye in 2002, in his latest interest. Signed copies of his colorful book, which was published just last month, will be on sale after his talk.

小题1:The Information Highway________.   

A.appeals to a large number of users

B.is crowded with car drivers

C.offers just a few on-line services]

D.is free from traffic accidents小题2:How does MR .Cool manage to travel the Information Highway so fast?

A.By storing fewer files.

B.By repair the system.

C.By using a broad-band connection.

D.By buying a better computer.小题3:What can be learned from Passage 2?

A.There will be a book show at Grayson Hall

B.Friedman is now studying the Great Barrier Reef.

C.Friedman is a leading expert on computer science.

D.There will be a talk on global warming this week.小题4:Passage 2 is most probably       

A.An ad for a new book.

B.A poster about a lecture.

C.A note to a doctor in a university.

D.An introduction to a professor.小题5:According to the passage, which of the following statement is not true?

A.Doctor Herman Friedman is a famous expert on environmental science.

B.A new book has been published recently by Doctor Herman Friedman.

C.The colorful new book, signed by him, will be sold before the talk.

D.Doctor Herman Friedman has studied the changes of the Grate Barrier Reef.

题型:填空题

慢性粒细胞白血病临床特点是()

A.有明显的发热、贫血、出血

B.腹痛较普遍

C.淋巴结肿大较常见

D.以脾肿大为主伴或不伴发热、乏力

E.易感染

题型:填空题

青蛙体温不恒定的根本原因是().

A.体表没有鳞片,散热较快

B.经常生活在水中,难以保持恒温

C.心室有混合血,输氧的能力比较低

D.体型软小,难以保持体热

题型:填空题

招标采购项目管理过程中,要表示出一项工作不能如期完成,将有哪些工作会受到影响时,可选用______。

A.网络图
B.传统横道图
C.带有时差的横道图
D.具有逻辑关系的横道图

题型:填空题

某行政机关决定对赵某采取行政强制措施,但赵某违法行为情节显著轻微。关于违法行为情节显著轻微,以下说法正确的是?()

A.可以不采取行政强制措施

B.情节显著轻微不是考虑的情况之一

C.中止实施行政强制措施

D.以上说法都不正确

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