短文改错

     Growing up is not easy.Sometimes all that is need is someone to rely on.

    For many years, she was Mum.My mother was a career woman and has her

own problems to take care, but when I needed her, she was always there.Her

strength came from anywhere.I don't quite know, somewhere very deep.She was

so strong that she would never break down, even while I went to her with all my

littleboy problems and shout at her.

    Her strength made me stronger and gave to me courage to try things other

thought were impossible.A helping hand is always stronger enough to lift you up.

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“肠原性青紫症”发生于（）。

A.含氰甙植物中毒

B.毒蕈中毒

C.有机磷中毒

D.亚硝酸盐食物中毒

E.鲜黄花菜中毒