【简答题】玉米制种要求在( )停水 [填空(1)]A. 8月底
【简答题】— Is there a bank near here? — Yes, _____ . [ ] A . there is B. there are C. there isn't D. they are
【单选题】一般制种玉米播种要求5厘米地温稳定在( )
【单选题】– Where is my shirt, mum? – ________.
【简答题】- a post office near here? -Yes, there is. [ ] A Is it B. Is that C. Is this D. Is there
【判断题】一般玉米制种时,为提高制种产量,通常制种区玉米播种密度小于玉米大田生产田。