胚胎发育的场所在母亲的______里.在这里,他们靠______获得母体的营养物

题型:填空题

问题:

胚胎发育的场所在母亲的______里.在这里,他们靠______获得母体的营养物质,并同时排出废物到母亲体内的.

考点:人的生殖过程与发育
题型:填空题

Most Americans enjoy moving from place to place. For example, they often drive their cars 120 to 160 kilometres away just to have dinner with a friend or even fly to London or Paris just to watch a football match. In some states only one person in five lives in a place for more than five years. One may be born in one city, and go to school in another. He may finish his middle school in two or three cities, and then go to college far across the country. When he begins to work, he may possibly move from job to job. Moving from one job to another, which is called “job-hopping”, can be seen in many places in the United States.

Job-hopping does good to workers because every change of a job gives them a chance to get better pay. And job-hopping also gives bosses the chance to get new ideas and skills from him or her.

小题1:From this passage, we can see Americans often travel to _______________.

A.have dinner with their friends

B.go shopping

C.watch a football game

D.enjoy themselves小题2:Which of the following is true?

A.About 20% of the people stay in one place for over five years.

B.Children have to finish middle school in one place.

C.People go to the nearest college.

D.When people begin to work, they don’t move any more.小题3:Job-hopping means “_______________”.

A.looking for a job

B.having a job

C.changing jobs often

D.losing a job小题4:In the USA job-hopping _______________.

A.is very popular

B.helps young people go to college

C.helps workers in traveling

D.helps students begin to work小题5:The writer thinks job-hopping _______________.

A.does good only to the workers

B.does good only to the boss

C.must be stopped

D.is helpful

题型:填空题

A waiter works ___________ a restaurant.[ ]

A. at      

B. in      

C. for

题型:填空题

关于采购发票修改功能,下面哪句话是错误的?()

A.采购结算后的发票不可以修改。

B.采购结算后业务类型和已结算的行不允许修改。

C.同一张发票,部分结算,未结算的行可以修改、删除。

D.必有订单时不允许增行,订单非必有时允许增行。

题型:填空题

下列哪些因素可以导致手术室内燃爆事故的发生()

A.可燃性全麻药

B.水

C.静电

D.助燃剂

E.可燃物质

题型:填空题

说明活性石灰的特点和作用。

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