过量使用含氮化肥时，容易导致下列哪种化学物质的污染( )A．碳酸盐 B．硫酸盐 C 发布时间：2017-06-24 04:31 │ 来源：www.tikuol.com 题型：单项选择题 问题： 过量使用含氮化肥时，容易导致下列哪种化学物质的污染( )A．碳酸盐B．硫酸盐C．磷酸盐D．硝酸盐
题型：单项选择题 完形填空。 Look at the picture. It's a picture 1 ____ a park. 2 ____ the tree 3 ____ some birds.Are there 4 ____ boys under it? Yes, they are. They are 5 ____ English books. 6 ____ girls are there nearthe river? There are six. Are they 7 ____ games? Yes, they are. 8 ____ that girl behind the tree? That's Kate. She is 9 ____ a red skirt. She's 10 _____ tea. ( )1. A. about ( )2. A. In ( )3. A. have ( )4. A. some ( )5. A. reading ( )6. A. Who're ( )7. A. running( )8. A. What's ( )9. A. putting ( )10.A. drinkingB. of B. down B. there's B. any B. seeing B. How much B. play B. Who's B. putting on B. eating C. to C. at C. there're C. a C. looking C. How many C. playing C. How's C. wearingC. like 查看答案
题型：单项选择题 (1)投资办厂；(2)销售产品；(3)购买原材料；(4)回收投资；(5)制造产品A．(1)(3)(5)(4)(2) B．(3)(1)(4)(2)(5)C．(1)(3)(5)(2)(4) D．(1)(3)(2)(5)(4) 查看答案