慢性非传染性疾病死亡概率的数学单位是（）
A.十万分比
B.万分比
C.千分比
D.百分比
E.百万分比
参考答案：A
It's very kind ______ you to help the children in poor areas. [ ]
A. for
B. to
C. of
D. on.
维持施肥maintenancefertilization
