题干

According to China's Food Safety Law, ______________ in February 2009, the State Council established the Food Safety Committee to oversee a chain of departments.
A.as is passedB.as it was passed
C.which is passedD.which was passed
上一题 下一题 0.64难度 单项选择 更新时间:2013-09-24 09:47:30

答案(点此获取答案解析)