（）常引起贮藏期种实、球根、鳞茎等器官腐烂发霉。
A.白锈菌
B.子囊菌
C.毛霉和根霉菌
D.黑粉菌和锈菌
参考答案：C
小题1:You are late again. What’s your e____（ 理由） for being late this time ？
小题2:Did you know who d____(发现) America?
小题3:It may be s______ (晴朗的) tomorrow.
小题4:Most people can greatly improve the q _____(质量) of life.
小题5:Many tall buildings have a____ (已经) been built in our city.
装配次序应为（）
A.组件装配→部件装配→总装配
B.总装配→组件装配→部件装配
C.部件装配→组件装配→总装配
