常用的防雷装置中,()是接闪器。 A.避雷器 B.避雷线 C.引下线 D.接地装置

题型:单项选择题

问题:

常用的防雷装置中,()是接闪器。

A.避雷器

B.避雷线

C.引下线

D.接地装置

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题型:单项选择题
用“五点法”画函数y=2sin(
1
3
x-
π
6
)在[0,6π]上的图象.
题型:单项选择题

血氨升高常见于()。

A.尿毒症

B.上消化道出血

C.肝性脑病

D.贫血

E.低蛋白饮食

题型:单项选择题

The rest of students in the classroom ______my classmates.

A.is

B.are

C.be

D.am

题型:单项选择题

Questions from 31 to 35 are based on the following passage: There are a lot of “markets”. Some markets are local; you may be willing to compare prices for fruits and vegetables in a few shops in your local area, but you would be unwilling to go across the city to find out more information. Some markets are national. Many firms sell goods across the country. Some markets are global or international. Increasingly, more and more countries are involved in the world economy, whether they know about it or not.However, there are many other markets: labor markets for job seekers, supermarkets for grocery shopping, foreign exchange market, capital market, real estate markets and so on. And we must not overlook the fact that many services such as banking, insurance are also bought and sold on a worldwide scale. But what is a “market” Most people would say, “A market is a place where enough buyers and sellers meet face to face, so that a market price for goods and services can be determined.” However, with rapid growth of telecommunications, it is no longer necessary for buyers and sellers to physically meet to form a market.You may hear the terms “global market” or “global economy”. What do those terms mean to you What do they mean to business today Thanks to the Information Age we are seconds away from the rest of world. Business everywhere recognizes that they can expand their market to anywhere and do business at any time because of the Internet. Now, the Internet is the fastest growing market in the world today, yet buyers and sellers don’t even have to leave their own homes to transact business.In the modern world, a market can take many forms. Generally speaking, a market may be housed in a place, or it may exist only in people’s minds. And a market can be any place or process that brings together buyers and sellers with a view to agreeing to a price.

In the modern world, what a market can take()

A.A market can be housed in a place.

B.A market can exist in people’s mind.

C.A market can be a place where buyers and sellers meet for bargain.

D.above all

题型:单项选择题

以上五种营养物质,猪肝中含量最丰富的营养物质是

A.优质蛋白质
B.必需脂肪酸
C.膳食纤维
D.钙
E.维生素A

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