加碘食用盐
参考答案:10(25010011)
I feel my stomach terrible. I think I ate _______ at lunch time. [ ]
A. something bad
B. something good
C. bad something
D. good something
技术高度密集型行业一般属于( )市场。
A.完全竞争型 B.垄断竞争型C.寡头垄断型 D.完全垄断型