普通胶带输送机司机的上岗证由（）安培中心发放。A、五级 B、四级 C、二级 D、三级 发布时间：2017-05-09 18:12 │ 来源：www.tikuol.com 题型：单项选择题 问题： 普通胶带输送机司机的上岗证由（）安培中心发放。A、五级B、四级C、二级D、三级
题型：单项选择题 选出下列各句的答语。( ) 1. Whose bag is this? ( ) 2. How much is this watch? ( ) 3. Where will they go on vacation?( ) 4. Show me your picture, Tom.( ) 5. What do you want to do? ( ) 6. Will she go to the Beijing Zoo next week? ( ) 7. What about this book?( ) 8. Have a nice trip. ( ) 9. Which row is he in?( ) 10. How old is your sister?A. She is twelve years old. B. Thank you very much. C. It's 200 yuan. D. It's Jim's. E. Row Five. F. I like it a lot. G. They will go to Dalian. H. OK. Here you are. I. I want to play tennis. J. Yes, she will. 查看答案
题型：单项选择题 若不等式f（x）≤0的解集是[-2，3]，不等式g（x）≤0的解集是φ，且f（x），g（x）中，x∈R，则不等式f(x)g(x)＞0的解集为（-∞，-2）∪（3，+∞）（-∞，-2）∪（3，+∞）． 查看答案