下列物质中,属于电解质的是( ) A.CO2 B.盐酸 C.BaSO4 D.酒精

题型:选择题

问题:

下列物质中,属于电解质的是(  )

A.CO2

B.盐酸

C.BaSO4

D.酒精

考点:电解质、非电解质
题型:选择题

若1 mol某气态烃CxHy完全燃烧,需用3molO2,则

[     ]

A.x=2,y=2

B.x=2,y=4

C.x=3,y=6

D.x=3,y=8

题型:选择题

第II卷(共45分)

第四部分 书面表达(共二节,满分15分)

阅读下面短文,并根据短文后的要求答题。(请注意问题后的字数要求)

If you’ve decided on a career in the media, you should be sick to death with people telling you how competitive the industries are.

But that may mean that you will find it a little disappointing when you enter a place where perhaps no one will ask you your name, or say hello to you in the morning, and where you are being perhaps not paid to do a job.

There are a number of training schemes offered across the media, which are great routes in. Simon Winder was given his start in publishing by MacMillan’s training scheme. I was sent out to Africa and Asia for a couple of years, selling educational books. It was a terrible job in many ways but interesting training,” said Winder. Because he had learnt first-hand experience about the business of publishing, his training prepared him for a career in the industry. On his return to England, Winder made the move to a senior position at Penguin seven years age.

If you can’t get on to a training scheme, or get a paid job straight away, then ______________ will open up many opportunities to you. It is all about proving that you can do the job. “Identify companies and people whose programs you like, and then simply write to them,” Cinneck advised those wanting to break into television,” Offer to work for free if you possibly can, and the chances are you will impress with your hard work and ideas, and end up staying on in paid employment. That’s how practically every employee of Ten Alps ended up with the company.

Wherever you start out, if you work hard at what you do, your efforts will be rewarded. “Don’t focus on where you want to end up,” advised Ross, “You’ll know where that is when you’re there; just stay focused on the job in hand, and do that as well as you can.”

76. Fill in the blank in the fourth paragraph to complete the sentence. (Please answer within 10 words.)

___________________________________________________________________________

77. The passage mentions two ways that you can enter the media. Please list them. (Please answer within 10 words.)

_________________________________________________________________________

78. Translate the underlined sentence into Chinese.

________________________________________________________________________

79. What’s the main idea of the passage? (Please answer within 10 words.)

_________________________________________________________________________

80. As a whole, what attitude should you have while trying to enter the media industry? (Please answer within 10 words.)

_________________________________________________________________________

题型:选择题

下列属于已知基因突变的筛查方法有()。

A.SSCP分析

B.PCR-RFLP

C.Taqman技术

D.连锁分析

E.等位基因特异性寡核苷酸片段分析

题型:选择题

车技术参数中的整车装备质量是指车满载的总质量。

题型:选择题

引起车辆垂直振动和横向振动的车辆自身激振源有哪些?

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