试题与答案

有人设想合成具有以下结构的烃分子. (1)结构D显然是不可能合成的,原因是__

题型:填空题

题目:

有人设想合成具有以下结构的烃分子.

(1)结构D显然是不可能合成的,原因是______.

(2)在结构A的每两个碳原子之间插入一个CH2原子团,可以形成金刚烷的结构,金刚烷的分子式为______

(3)B的一种同分异构体是最简单的芳香烃,能证明该芳香烃中的化学键不是单双键交替排列的事实是______

a.它的对位二元取代物只有一种         b.它的邻位二元取代物只有一种

c.分子中所有碳碳键的键长均相等       d.能发生取代反应和加成反应

(4)C的一种属于芳香烃的同分异构体是生产某塑料的单体,写出合成该塑料的化学方式______.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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题型:阅读理解

CONCORD, N.H.—Torrential rain forced hundreds of people from their homes in parts of New England on Sunday, as water flowed over dams and washed out roads.

The governors of New Hampshire and Massachusetts declared states of emergency. Maine’s governor also declared a state of emergency for one county. “It’s a very serious situation,” said New Hampshire Governor John Lynch, adding that forecasters were predicting 12 to 15 inches of rain by the end of the storm in parts of southern New Hampshire. “It continues to change and the situation continues to worsen.”

In some towns, police and fire crews used boats to get people out of their homes and stranded cars after hundreds of roads were damaged. Others got around in kayaks(皮船). Some towns shut down, not letting anyone pass except emergency vehicles. “The town is cut right in half,” said Glenn Laramie, police chief in Andover, N.H.

A dam in Milton, N.H., was in danger of failing, which could send a 10-foot wall of water downstream, the National Weather Service said in a bulletin. People downstream were being evacuated from the town.

In Massachusetts, cars were pulled from flooded streets in downtown Peabody, about 20 miles north of Boston, and about 300 people were evacuated from an apartment complex for seniors. Businesses stacked sandbags at their doors, trying to prevent damage from water that at one point rose to waist-deep.

Some parts of New Hampshire had seen 7 inches of rain by midday Sunday and forecasters said up to 5 more inches might come during the day. About 100 residents were evacuated from their homes in Wakefield, N.H., because of concerns about two dams in the area.

Flooding in New Hampshire in October killed seven people, carried off homes and washed away miles of roads down to bedrock.

In Maine, flooding was reported on 60 roads in the southern part of the state, said governor’s spokeswoman Crystal Canney. More than 50 homes in Sanford and several in Kennebunk also were evacuated, state officials said.

小题1:Which is NOT true according to the article?

A.The situation in N. H. is very serious.

B.New England is a region of the U.S.

C.A state of emergency was declared in three whole states.

D.Seven people lost their lives in New Hampshire in October.小题2:What is the main idea of the passage?

A.Two dams failed in New Hampshire.

B.Flood in New Hampshire.

C.State of emergency in New England.

D.Severe floods in three U.S. states.小题3:In paragraph 4, the underlined word “evacuate” most probably means“    ”.

A.rescue

B.trapped

C.send away

D.wash away小题4:Which is NOT a part of New Hampshire?

A.Peabody

B.Concord

C.Milton

D.Andover小题5:What was mentioned to cope with the situation?

A.Some towns shut down.

B.Some dams were open.

C.People all left their homes.

D.Some temporary houses were built.

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D.通过"[243118]理财产品兑付本金以及收益"交易可将客户的本金及收益兑付到客户协议账户。

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题型:问答题 案例分析题

某市一栋综合楼,地下共4层,地上共20层,采用框架剪力墙结构,总建筑面积30万m2,主楼与其裙房之间设有防火墙等防火分隔设施,主楼各层建筑面积均大于1000m2。该综合楼总平面布局及周边民用建筑等相关信息如图1所示。该综合楼地下3、4层均为人防层,其主要使用功能均为普通汽车库、复式汽车库和储存可燃固体的库房;地下2层主要使用功能为展览厅、管理用房及燃气锅炉房、柴油发电机房、变压器室、配电室、消防泵房等设备用房;地下1层主要使用功能为消防控制室、管理用房及商场营业厅。主楼首层主要使用功能为门厅、咖啡厅、自助餐厅、商场营业厅,地上2、3层主要使用功能为儿童游乐厅、展览厅、商场营业厅,地上4~19层主要使用功能为办公室,地上20层主要使用功能为会议厅、多功能厅。裙房1~6层主要使用功能为商场营业厅。该建筑按有关国家工程建设消防技术标准配置了室内外消火栓给水系统、自动喷水灭火系统和火灾自动报警系统等消防设施及器材。

根据以上场景,回答下列问题。

消防水泵的启动方式分为哪几种?

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