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单项选择题

原地单手肩上投篮的正确用力顺序是()。 A.
投篮时手臂向前上方伸直、抬肘,使球从食、中指端投出。 B.
投篮时下肢蹬地,左右手同时发力,手臂向前上方伸直,食、中指用力拨球将球投出。 C.
投篮时下肢蹬地发力,手臂向前上方伸直,手腕前屈,食、中指用力拨球,通过指端将球投出。

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Within fifteen years Britain and other nations should be well on with the building of huge industrial complexes for the recycling of wastE.The word rubbish could lose its meaning because everything that goes into the dumps would be made into something useful. Even the most dangerous and unpleasant wastes would provide energy if nothing elsE.
The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what go out. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber as well.
Another new project is being set up to discover the best ways of sorting and separating the rubbish. When this project is complete, the rubbish will be processed like this: first, it will pass through sharp metal bars which will tear open the plastic bags in which rubbish is usually packed;then it will pass through a powerful fan to separate the lightest elements from the heavy solids; after that founders and rollers will break up everything that can be broken. Finally, and the rubbish will pass under magnets, which will remove the bits .of iron and steel; the rubber and plastic will then be sorted out in the final stagE.
The first full-scale giant recycling plants are, perhaps, fifteen years away. Indeed, with the growing cost of transporting rubbish to more distant dumps, some big cities will be forced to build their own recycling plants before long.
The word “rubbish” could lose its meaning because _____________.
A.most kinds of mental could be recycled
B.only dangerous wastes would be recycled
C.any waste could be made into something useful
D.have been abandoned because they are too
The purpose of the latest recycling project is to find out_________ .A.what kind of mental could be provided
B.how paper and rubber would be produced
C.how much raw materials could be supplied
D.where the recycling plant should be built
What is NOT mentioned as apart of the recycling process in Paragraph 3?A.Sharpening mental bars
B.Sorting out small pieces of mental
C.Breaking up whatever is breakable
D.Separating light elements from heavy ones
I he first full-scale huge recycling plants_________ .A.began to operate fifteen years ago
B.will probably take less than fifteen years to build
C.will in operation for fifteen years
D.will probably be in operation in fifteen years
What is the passage mainly about?A.New ways of recycling wastes
B.The location of recycling plants
C.A cheap way to get energy
D.The protection of city environment.
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