棉花苗期主要病虫害有哪些？（）A、立枯病，炭疽病，红腐病，锈

搜题请搜索小程序“爱下问搜题”

问题单项选择题

棉花苗期主要病虫害有哪些？（）

A、立枯病，炭疽病，红腐病，锈病

B、炭疽病，红腐病，蚜虫，猝倒病

C、立枯病，炭疽病，红腐病，猝倒病

D、立枯病，炭疽病，棉铃虫，猝倒病

答案

参考答案：C

选择题

— She should not have done that sort of thing.

— Whatever she did was reasonable, ________to what you have done.Besides, it's none of

your business.Get down to________your lessons. [ ]

A. compared; doing

B. comparing; doing

C. compared; do

D. comparing; do

问答题简答题

耐张杆、转角杆、终端杆跳线连接方法是什么？