【多选题】判定植物必需的矿质元素,必须具备的条件有:
A.
(1)如缺乏该元素,植物发育发生障碍,不能完成 生活史 。
B.
(2)除去该元素,则植物表现出专一的缺乏症而这种缺乏症是可以预防和恢复的。
C.
(3)该元素在植物营养生理上应表现直接的结果,决不是因土壤或培养基的物理、化学、微生物条件的改变而产生的间接效果。
【单选题】古希腊雅典的陪审法院由 每个公民均可当选为陪审员,参与案件的调查与审理,推 行司法民主化。
【单选题】—You' re too tired, and you should stop _______ a rest. —I know, but I can't stop ___________. I need money. [ ]
【单选题】Elisa usually spends a lot of ti me English.
【单选题】Josh: I know. When I think of my family and friends, I know I should stop smoking. I'll tell you what. I'll quit smoking for at least one week.
A.
Amy: Great! But don't break __________________ , OK?
【单选题】I know I should stop smoking─don't give me a ____________ about it.
【判断题】All import cargo has to be landed at the customs port and should be removed out customs control without the written permission of the customs authorities.( )