单季晚稻和中稻施肥方法
参考答案:
基肥每亩25~35千克撒可富专用肥。追肥插秧后5~7天每亩追施尿素15~20千克,根据生长情况,拔节期可追施尿素每亩10~15千克。
Read and write.(请用动词的适当形式填空)
1. Look ! Many people ______ ( swim) in the river.
2.What ______ (do) she ______ (do)?
3. Zhang Peng ______ (buy) some cards two days ago.
4. Where ______ (do) you ______ (go) last weekend?
5. Listen, the train ______ (come).
在统计学中,定性指标是指()。
A.等级资料
B.定性指标
C.数值变量
D.计数资料
E.定性因素