皮皮学，免费搜题
登录
搜题
【多选题】
南方农田排水的作用主要有：A.
防止作物受淹减产
B.
减少根系活动层中过多的土壤水
C.
降低土壤含水量适宜于提高土壤耕作质量
D.
将地下水位控制在一定的深度，防止根系活动层发生盐分积累
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】. Chaucer's earliest work of any length is his ________________, a translation of French Roman de la Rose by Gaillaume de Lorris and Jean de Meung, which was a love allegory enjoying widespread popula...
A.
Troilus and Criseyde
B.
Romance of the Rose
C.
A Red, Red Rose
D.
Piers the Plowman
【单选题】I think Father would like to know ___________ I've been up to so far, so I decide to send him a quick note
A.
which
B.
why
C.
what
D.
How
【单选题】admin server怎样重连managed server?()
A.
managed servers send heartbeat to admin server
B.
读取managed-servers.xml和config.xml
C.
managed servers必须重启
D.
admin server不会重连
【单选题】I think Father would like to know ______ I've been up to so far, so I decide to send him a quick note.
A.
which
B.
why
C.
what
D.
how
【简答题】I think Father would like to know _______ I’ve been up to so far, so I decide to send him a quick note. A．which B．why C．what D．how
【单选题】—I’ll return the book to Mary, but I can’t find her anywhere. —She the teachers’ office. You can find her there.
A.
have gone to
B.
has gone to
C.
has been to
相关题目：
参考解析：
知识点：
题目纠错 0
发布
