公路“三乱”是指（）。A、乱打人 B、乱收费 C、乱设卡 D、乱罚款 E、乱骂人

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     A taboo is a social action that is not allowed. Every culture in the world has its own taboos. The breaking

of a taboo sometimes makes people feel uncomfortable. I learned this through my own experience.

     Last weekend, Wang Lin and I showed two foreigners around our city. Mr. Singh was from India and

Mr. White from the USA. When I held out my left hand to shake hands with him, Mr. Singh seemed to be

unhappy. Mr. White, however, was quite casual (随意的). He said hello to me with a big smile and a wave

of his hand.

     In the evening, we stopped at a restaurant for dinner. I noticed that Mr. Singh didn't touch the beef and

Mr. White seemed not to like chickens' claws(爪子). During the meal, Wang Lin said sorry to Mr. Singh and

continued to explain that we didn't know it was a taboo in India to shake one's left hand. Mr. Singh explained

that since oxen (牛) are sacred (神圣的) in India, people don't eat beef there. Mr. White joined in and said that

it was not usual in the States for people to eat chickens' claws. He went on to say that Americans don't usually

get into each other's personal space. Isn't it a good lesson to remember?

水通电分解的化学方程式为______．如果电解3.6g水，则生成氢气的质量为______g，生成氧气的质量为______g．

下列凭证属于银行特定凭证的有( )。

A．支票及进账单

B．现金收、付传票

C．转账借、借方传票

D．特种转账借、贷方传票

为应对美国的核讹诈，中国集中全力发展了核工业和航天工业，（）年开始了核潜艇的研制工作。

A.1959

B.1960

C.1964

D.1958

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？