The purpose of the writer in writing this passage is to ______.A.explain the advantage of

外语类 公共英语 已帮助 人

The purpose of the writer in writing this passage is to ______.

A.explain the advantage of blood donation

B.stress the importance of blood donation

C.tell us his donation experience in China

D.encourage people to give blood freely

请帮忙给出正确答案和分析,谢谢!

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