请从锌、氧气、二氧化碳、水、盐酸、氢氧化钡溶液、硫酸铜溶液、碳酸钙中选出适当的物

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问题:

请从锌、氧气、二氧化碳、水、盐酸、氢氧化钡溶液、硫酸铜溶液、碳酸钙中选出适当的物质,按下列要求写出有关的化学方程式:

(1)生成酸的化合反应: ________________________________________

(2)生成两种氧化物的分解反应: ________________________________________

(3)生成气体的置换反应: ________________________________________

(4)生成两种沉淀的复分解反应: ________________________________________

考点:化学反应方程式的书写
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月的理解。

                                                                        Giving Back

                                                                          Fair Way

     The Westborough High School golf team had taken the official photos with the state prize. The other teams,

disappointed, were on the bus heading home. And then Westborough instructor Greg Rota noticed something

wrong with one of the score cards. A 9 had been recorded as a 7. They were not the state prize winner; Wobum

High had won. "No one would have known," said Wobum's instructor, Bob Doran. For Rota, it wasn't a difficult

decision:"The prize wasn't ours to take."

                                                                          Coin Stars

     "College students are lazy, but they also want to help," says University of Pennsylvania graduate Dana Hork.

So she made it easy, placing cups in rooms where students could leave their spare coins, and handing out cups

to first-year students to keep in their rooms. Her "Change for Change" effort has collected $40,000 for charities

(慈善机构), which were decided upon by students.

                                                                     Never Forgotten

     A school in Massachusetts received a $9.5 million check from Jacques LeBermuth. But it took officials

several days of digging to discover his connection to the school. Records showed the LeBermuth came from

Belgium and studied in the school in the 1920s. When his family fell on hard times, he was offered free room

and board. LeBermuth became a trader, owned shares of AT&T and lived off the earnings until he died, at age

89.

1. What did Greg Rota probably do in the end?

A. Took photos of Doran.

B. Had a meeting with Doran.

C. Returned the prize to the organizer.

D. Apologized to Wobum High School.

2. Greg Rota's decision shows that he was ____.

A. honest

B. polite

C. careful

D. friendly

3. The underlined word "Change" in the second paragraph means ____.

A. idea

B. decision

C. cups

D. coins

4. What did the school officials do after receiving the check from Mr. LeBermuth?

A. They tried to find out why he gave them the money.

B. They went to Belgium to pay their respects to him.

C. They dug out the records that were buried underground.

D. They decided to offer their students free room and board.

5. Jacques LeBermuth gave the money to the school because ____.

A. the school asked for it

B. he had no need for that much money

C. the school helped him in the past

D. he wanted to be remembered by the students

题型:填空题

()在体验中、开放、动员的辨别中构建

题型:填空题

被称为“梅妻鹤子”的宋初诗人是______

A.钱惟演
B.柳开
C.林逋
D.杨亿

题型:填空题

基金管理人应当在每个季度结束之日起15个工作日内,编制完成基金季度报告,并将季度报告登载在指定报刊和网站上。( )

题型:填空题

对肾功不全、有甲状腺疾病史或已知碘过敏者应避免使用()

A.碘化合物(聚维酮碘和缓释卡地姆碘)

B.银化合物(包括磺胺嘧啶银)

C.聚盐酸己双胍和甜菜碱(PHMB.)

D.双氯苯双胍己烷

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