题目

选用do , does, don’t, doesn’t填空。1.________you have chopsticks?Yes, I ________ . 2._______you have plates? No, I _______ . 3. _______he have a fork?Yes, he _______. 4. _______she have a knife?No, she _______ . 5. _______ Gogo have a tent? No, he _______ have a tent. 答案：【答案】1.Do do 2.Do don’t 3.Does does 4.Does doesn’t 5.Does doesn’t 【解析】略设奇函数f（x）在（0，+∞）上为增函数，且f（1）=0，则不等式的解集是    ．