请先阅读下面短文，掌握其大意，然后从方框所给的12个词中选出最恰当的10个，用其适当形式填空。每个词限用一次。（每小题1分）

them; boring; interesting; say; because; for; eat; of; be; food; vegetable; need  

I like eating. My favorite    小题1:   is chicken and hamburgers. I eat    小题2:   on Sundays in KFC. I don't like    小题3:   or fruit. I think they are    小题4:  . My father likes fruit and vegetables. He    小题5:   I don't have a good eating habit. He also says I    小题6:   to eat more fruit and vegetables,    小题7:   they are healthy, and they are good   小题8:   me. Now, I    小题9:   some fruit and vegetables, I   小题10:   healthy now.

在分子流行病学研究中，暴露标志和效应标志是结合疾病的阶段和研究需要确定的；根据研究目的不同，大多情况下，一项生物标志。（）

A、作为暴露标志就不能作为效应标志

B、作为效应标志就不能作为暴露标志

C、有时作为效应标志，有时也作为暴露标志

D、可以同时既是暴露标志又是效应标志

E、只宜作为暴露标志