黄曲霉毒素的产毒菌株主要是（）
A.赭曲霉
B.黄曲霉
C.构巢凹霉
D.烟曲霉
E.寄生曲霉
参考答案：B, E
Martin and his friends didn't eat up all the food they ordered, ______ they took the rest away. [ ]
A. for
B. or
C. so
D. as
