函数的部分图像如图所示,则f(x)().
参考答案:
Measures have been taken to prevent the accidents, but much _____ for more improvement.
A.remains to be done
B.is remained to do
C.remains to do
D.is remaining to be done
政策性银行的政策性业务要实行公开透明的( )。
A.审批制
B.承包制
C.招标制
D.问责制