Girls' work is______ .
A.harmful to the health because it is heavy
B.not harmful to the health because it is light
C.not harmful to the health though it is heavy
D.harmful to the health though it is light

A.A.harmful
B.not
C.not
D.harmful

【参考答案】

D
解析：细节题。第二段第三句：女童工的工作对健康是有害的，尽管强度不大。