主页
学科
搜索
账户
常见问题
当前学科：土壤肥料学
题目：
问答题
橡胶、胡椒、芒果种植前通常先挖好植穴，表土与底土分别堆欣在植穴旁边暴晒一段时间，然后才回土定植，为什么？
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
患者脘腹及两胁胀满疼痛，按之痛剧，且见郁郁微烦，往来寒热，口苦咽干，大便秘结，舌红苔黄，脉弦数有力者，治宜（）
试述《市人大监督司一丝不苟》在写作上存在的主要问题？?
说明织物力学性能如拉伸断裂强力，撕破强力的实验方法以及原理。
恶性肿瘤主要的生长方式是（）
（）是巴西最大的城市和工业中心，也是世界特大城市之一。
社区构成的要素包括（）
分包单位的领料人员应向项目部物资部门出具以下资料（）
Write down the numbers of the topic sentences in the following passages.①The bright child is patient. ②He can tolerate uncertainty and failure, and will keep trying until he gets an answer. ③When all his experiments fail, he can even admit to himself and others that for the time being he is not going to get an answer. ④This may annoy him, but he can wait. ⑤Very often, he does not want to be told how to do the problem or solve the puzzle he has struggled with, because he does not want to be cheated out of the chance to figure it out for himself in the future. ⑥Not so the dull child. ⑦He cannot stand uncertainty or failure. ⑧To him, an unanswered question is not a challenge or an opportunity, but a threat. ⑨If he can’t find the answer quickly, it must be given to him, and quickly; and he must have answers for everything.
治疗寒湿痢，应首选（）
长期过量饮酒对健康的危害有（）