“暖风熏得游人醉,直把杭州作汴州”中的汴州是今天的______城市。
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政府为了扶植农业,对农产品实行支持价格,但政府为了维持这个高于均衡价格的支持价格,就必须______。
A. 试行农产品配给制
B. 收购过剩的农产品
C. 增加对农产品的税收
D. 给农民补贴
The use of nuclear power has already spread all over the world. (1)_____, scientists still have not agreed with what should be done with the large (2)_____ of waste materials that (3)_____ to increase every year. Most waste materials (4)_____ of simply by placing them somewhere. But nuclear waste must be (5)_____ with great care. It (6)_____ dangerous radiation and it will continue to be (7)_____ for hundreds of thousands, even millions of years. How should we get (8)_____ of such waste material in such a way (9)_____ it will not harm the (10)_____ Where can we (11)_____ distribute it One idea is to put this radioactive waste inside a thick container, which is (12)_____ dropped to the deep bottom of the ocean. (13)_____ some scientists believe that this way of (14)_____ nuclear waste could kill fish and other living things in the oceans or interfere (15)_____ their growth. Another way to (16)_____ nuclear waste is to send it into space, to the sun, (17)_____ it would be burned. Other scientists suggest that this polluting material be (18)_____ thousands of meters under the earth"s surface. Such underground areas must be free (19)_____ possible earthquakes, and advances are being made. But it may still be many years (20)_____ this problem could be finally settled.
A. until
B. after
C. before
D. unless
生产价格的构成是生产成本加上______。
A. 剩余价值
B. 利润
C. 平均利润
D. 超额利润
The use of nuclear power has already spread all over the world. (1)_____, scientists still have not agreed with what should be done with the large (2)_____ of waste materials that (3)_____ to increase every year. Most waste materials (4)_____ of simply by placing them somewhere. But nuclear waste must be (5)_____ with great care. It (6)_____ dangerous radiation and it will continue to be (7)_____ for hundreds of thousands, even millions of years. How should we get (8)_____ of such waste material in such a way (9)_____ it will not harm the (10)_____ Where can we (11)_____ distribute it One idea is to put this radioactive waste inside a thick container, which is (12)_____ dropped to the deep bottom of the ocean. (13)_____ some scientists believe that this way of (14)_____ nuclear waste could kill fish and other living things in the oceans or interfere (15)_____ their growth. Another way to (16)_____ nuclear waste is to send it into space, to the sun, (17)_____ it would be burned. Other scientists suggest that this polluting material be (18)_____ thousands of meters under the earth"s surface. Such underground areas must be free (19)_____ possible earthquakes, and advances are being made. But it may still be many years (20)_____ this problem could be finally settled.
A. covered
B. deposited
C. buried
D. reserved