根据对外贸易乘数理论，在其他条件不变的条件下，边际消费倾向同对外贸易乘数值呈（）
A.反向关系
B.无关联
C.正向关系
D.无法判断
参考答案：C
— Would you like to visit Singapore?
— No. There is not ____ to do there. [ ]
A. much
B. many
C. much thing
D. many things
阳春砂是（）植物。
