代料栽培
参考答案:
在食用菌生产中,用农作物秸杆、废料等代替段木进行栽培的一种食用菌栽培形式,如袋料、畦床栽培。
_____ more effectively with others, more and more people equip themselves with a higher education. [ ]
A. To compete
B. Being competed
C. Competing
D. Competed
生长在同一地区的两种杜鹃花的开花时间不同,自然状态下不能杂交,这种现象属于()
A.优胜劣汰
B.适者生存
C.生殖隔离
D.性状分离