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举一反三
【单选题】In many places water is becoming scarcer. Treating it as a right makes the scarcity worse. Ideally, efficient water use would be encouraged by charging for it, but attempts to do so have mostly proved...
A.
People should only be entitled to certain amount of water free.
B.
People can borrow water from their neighbors when necessary.
C.
People are free to bargain for water in market in their daily lives.
D.
People have the right to trade water to raise water productivity.
【单选题】In many places water is becoming scarcer. Treating it as a right makes the scarcity worse. Ideally, efficient water use would be encouraged by charging for it, but attempts to do so have mostly proved...
A.
Because farmers can use water for agriculture free.
B.
Because agriculture uses 75% of the world’s water.
C.
Because most farmers are not aware of water shortage.
D.
Because too many thirsty crops are grown in dry countries.
【多选题】支持苜蓿发展政策的补助标准及方式有（）。
A.
标准为600元/亩，3000亩起
B.
方式上采取先建后补，立项后，预先补助50%
C.
验收合格后，再补50%
D.
验收不合格，原预先补助不再收回也不再补发