连一连。①2×3A.8+8+8②4×5B.2×7③4×3C.2+2+2④6×2D

题型:连线题

问题:

连一连。
①2×3A.8+8+8
②4×5B.2×7
③4×3C.2+2+2
④6×2D.4+4+4
⑤7×2E.4+4+4+4+4
⑥8×3F.6+6
考点:表内乘法(2-9的乘法口诀)
题型:连线题

Tourism(旅游业)wasn’t as important as it is today. In the past, only people with a good deal of money could travel on holidays to other countries. More people travel today than in the past because there is a growing middle class in many parts of the world. That is to say, people now have more money for travelling. Special airplane fares for tourists make travel less expensive and more attractive(吸引人的)than ever before.

Different people have different reasons for travelling. But most people enjoy seeing countries that are different from their own. They also like to meet new people and enjoy new food.

Tourism has many changes in a country and in people’s lives. People build new hotels and restaurants and train local men and women as guides to show visitors interesting places.

小题1:What makes travel more attractive than before?

A.Modern telegraph (电报)lines make travel less expensive.

B.Travelling by air to other countries is much cheaper today.

C.More guides are being trained to show beautiful spots.

D.New hotels and restaurants have been built.小题2:Many more people travel today than in the past because ______.

A.travelling today is easier than in the past

B.people now have spare money for travel

C.great changes have taken place in the world

D.people have become more interested in travelling小题3:People make journeys to many parts of the world. This is because ______.

A.they want to make a study of geography

B.they want to spend money.

C.they want to meet different people and have new food

D.they don’t want to do anything else except that they visit friends小题4: Which of the following is TRUE according to the article?

A.People have some trouble in making journeys.

B.With the development of tourism, great changes will take place in many parts of the world.

C.Tourism won’t bring any changes in people’s minds.

D.Tourism causes only some changes in clothing.

题型:连线题
一个数是270,比另一个数大48,另一个数是(  ) 
A.318B.222C.75
题型:连线题

大尺寸水泥石碴花饰安装后的修整,是用()水泥砂浆嵌衬螺栓孔和周边缝隙,并用同花饰颜色的材料修整。

A、1:1

B、1:2

C、石膏

D、纸筋

题型:连线题

关于HLA的描述,错误的是()

A.通过分析亲代与子代的HLA表型,可以获知该家庭成员的HLA基因型

B.HLAⅡ类抗原是由α链与β链组成的

C.编码HLAⅠ类抗原α链和β2-微球蛋白的基因位于不同的染色体上

D.HLA完全相同的纯合子细胞罕见,一般可在近亲婚配的家庭中检出

E.血小板表面不表达HLA抗原

题型:连线题

对单相接地故障,(3kV及以上电动机的保护)当接地电流大于( )时,应装设有选择性的单相接地保护。

A.10A;
B.8A;
C.5A;
D.3A。

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