单选题:下列不属于种群年龄结构类型的是( ) 题目分类:生态学基础 题目类型:单选题 号外号外:注册会员即送体验阅读点! 题目内容: 下列不属于种群年龄结构类型的是( ) A.增长型 B.随机型 C.稳定型 D.衰退型 参考答案: 答案解析:
设在电信竖井中金属线槽内的综合布线电缆与沿竖井内明敷且容量大于100kV·A的380V电力电缆之间的最小净距应为下列哪一 设在电信竖井中金属线槽内的综合布线电缆与沿竖井内明敷且容量大于100kV·A的380V电力电缆之间的最小净距应为下列哪一项数值?请说明依据。( ) A.100 分类:生态学基础 题型:单选题 查看答案
Used to TV shows, where everything is quick and interesting Used to TV shows, where everything is quick and interesting, they do not have t 分类:生态学基础 题型:单选题 查看答案
The atmosphere is usually very friendly, and the teachers h The atmosphere is usually very friendly, and the teachers have now accepted the 分类:生态学基础 题型:单选题 查看答案