连线。
1.花中之王 A.月季
2.花中皇后 B.牡丹
3.花中之相 C.芍药
1一B 2—A 3—C
The maths problem is ______ hard for us ______ solve.
A.so, to
B.so, that
C.too, to
D.very, to
健康教育的核心任务是什么?