问题
单项选择题
Are you feeling all right today? Not really.()
A.Oh, I see
B.It doesn't matter
C.You'd better be happy
D.I am sorry to hear that
答案
参考答案:D
Are you feeling all right today? Not really.()
A.Oh, I see
B.It doesn't matter
C.You'd better be happy
D.I am sorry to hear that
参考答案:D
小明家责任田里的庄稼生长不茂盛,叶色淡绿、茎叶细小,同时还出现了不同程度的倒伏现象.请问:
(1)小明家的庄稼缺两种营养元素,它们是______(填“N、“P”、“K”或“微量元素”);
(2)某生产资料公司的化肥价格如下表:
化肥 | 尿素 [CO(NH2)] | 碳铵 | 磷矿粉 [Ca3(PO4)2] | 过磷酸钙 [Ca(H2PO4)2] | 氯化钾 | 硫酸钾 |
价格(元/吨) | 1200 | 350 | 150 | 250 | 650 | 800 |