具有亲细胞作用的抗体是
A.IgM
B.IgD
C.IgE
D.IgG
E.IgA
参考答案:C
Eating a lot of _____ and vegetables ______ for your health.
A.fruit; is good
B.fruits; are well
C.fruits; are good
D.fruit; are well
辩证唯物主义认为事物发展的规律是()
A、思维对事物本质的概括和反映
B、用来整理感性材料的思维形式
C、事物内在的本质和稳定的联系
D、事物联系和发展的基本环节