logo - 刷刷题
下载APP
【单选题】

张骞从中亚引进优良的马饲料苜蓿和优良马种(),加强汉朝骑兵的作战能力。

A.
三河马
B.
蒙古马
C.
大宛马
D.
河曲马
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
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.