三农问题的核心是()问题。
A、农村
B、农业
C、农民
参考答案:C
This dictionary is _____ to me, but that one is _____ . [ ]
A. great help; helpful
B. a great help; of little use
C. important; of few importance
D. very helpful; of no any use
2岁小儿标准体重、身长、头围是体重()kg身长()cm头围()cm
A.9和70和40
B.10和80和42
C.11和85和46
D.12和85和48
E.14和90和48