According to the passage, the term "uranium mine tailings" refers to ______.
A. the uranium that is taken from a mine
B. the ponds that hold liquid radioactive wastes
C. solid wastes that result from the mining of uranium
D. dangerous radon gas that escapes from uranium mines
查看答案
A．The development goal of UNICEF.B．Cooperation among developing countries.C．Economic d
A. The development goal of UNICEF.
B. Cooperation among developing countries.
C. Economic development and government efforts.
D. People's awareness of the importance of the problem.
The central idea of the passage is to point out potential problems regarding ______.
A. effects of high-level radiation
B. operation of nuclear power plants
C. fallout from the explosion of nuclear weapons
D. various sources of radioactive wastes
A．Any unused personal or household goods.B．Anything useful in daily life.C．Anything ch
Any unused personal or household goods.
B. Anything useful in daily life.
C. Anything cheaper than those sold in shops.
D. Anything people like to put up for sale.
A．It is easy to grow despite the poor soil.B．It is good for improving the quality of l
A. It is easy to grow despite the poor soil.
B. It is good for improving the quality of land.
C. It is the most suitable plant for windbreaks.
D. It is short with broad leaves.
微信支付 
支付宝支付