当要素A供给价格弹性为零时()。
A.该要素的供给量是固定的且与该要素价格无关
B.该要素的需求曲线单独决定均衡价格
C.要素A的全部支付都为租金
D.以上全对
参考答案:D
To return to the problem of water pollution , I’d like you to look at a study () in Australia in 2012.
A. having conducted
B. to be conducted
C. conducting
D. conducted
藏族人信仰藏传佛教,转经筒、转寺院、叩长头要按顺时针方向转动。( )