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Bamboo(竹) is one of the nature’s most surprising plants. Many people call this plant a tree, but it is a kind of grass. Like other kinds of grass, a bamboo plant may be cut very low to the ground, but it will grow back very quickly. A Japanese scientist recorded one bamboo plant that grew almost 1.5 meters in 24 hours! Bamboo grows almost everywhere in the world except Europe(欧洲). There are more than 1,000 kinds of bamboo that grow around the world on both mountains and plains. Not all bamboo looks the same. Some bamboo plants are very thin. They may only grow to be a few centimeters(厘米)wide while others may grow to more than 30 centimeters across. This plant also comes in different colors, from yellow to black to green. Many Asian countries have been using bamboo for hundreds of years. They often use bamboo for building new buildings. As a matter of fact, the cables(绳索) hold up the hanging bridge across the Min River in Sichuan are made of bamboo. The bridge has been in use for more than 1,000 years, and is still holding strong. In Africa, engineers are teaching poor farmers how to find water using bamboo. These African countries need cheap ways to find water because they have no money, and their fields often die from no rain and no water. It seems that bamboo is one of the best things they can use. Bamboo pipes and drills(钻) can help to make the poor thirsty fields be watered. 小题1:How is bamboo like grass? A.It is thin and easy to cut. B.It grows everywhere. C.It grows quickly after it’s cut short. D.It is short and green. 小题2:The underlined sentence “while others may grow to more than 30 centimeters across.” means “Some other bamboo plants may grow to be very _______.” A.short B.strong C.thick D.tall 小题3:From the text we know ______. A.All people call bamboo plant trees B.a bamboo plant may grow 4.5 meters in three days C.the bamboo plant changes its colors when it grows D.a bridge held by bamboo cable was built thousands of years ago 小题4:Why did the engineers teach the poor farmers in Africa to make use of bamboo? A.Because it is cheap. B.Because it is colorful. C.Because it drills fast. D.Because it is used by Asians. 小题5:Which of the following is NOT true? A.There are many different kinds of bamboo with different colors. B.Cables made of bamboo can last for over a thousand years. C.Bamboo can be used for buildings, bridges and watering projects(工程). D.Bamboo plants are able to grow well in any part of the world.
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B.
每一个类似于单个的虚拟屏幕,比如一个为总体视图,一个为详图。
C.
每一个的图层可见性都可以控制。
D.
画在图纸空间的图,可以变成模型空间的一部分。
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A.
正确
B.
错误
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A.
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可单独存在
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D.
头碰头重叠,重叠度高
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A.
汤(Soup)、开胃头盘(Appetizer)、副盘(Entree)或鱼盘(Fish)、主菜(Main course)、甜品(Dessert/Sweet)
B.
开胃头盘(Appetizer)、汤(Soup)、副盘(Entree)或鱼盘(Fish)、主菜(Main course)、甜品(Dessert/Sweet)
C.
汤(Soup)、开胃头盘(Appetizer)、主菜(Main course)、副盘(Entree)或鱼盘(Fish)、甜品(Dessert/Sweet)
D.
开胃头盘(Appetizer)、汤(Soup)、副盘(Entree)或鱼盘(Fish)、甜品(Dessert/Sweet)
E.
菜(Main course)
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