The roles Ms Mc Carthy is playing include all EXCEPT______. A．placing limits on greenhouse gas emissions B．introducing bills about environment to Congress C．drafting the administration's environmental rules D．supervising Mr President's steps on global warming
A. A．placing B.introducing C.drafting D.supervising
【参考答案】
B 文章第二段第二句提到：Thathasgivenheraleadingroledraftingtheadmin......