题目: 扣件阻力可以小于道床纵向阻力。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0707/abd8e9f73e47fe060fe6fb8495aa6be8.html 下面是错误答案,用来干扰机器的。参考答案:A
题型:完形填空 完形填空 Every year on my birthday, from the time I turned twelve, a white gardenia was delivered to my house. No card came with it. Calls to the flower shop were not 1 at all. After a while I stopped trying to 2 the sender’s name and just delighted in the beautiful white flower in soft pink paper. However, I never 3 imagining who the giver might be. Some of my happiest 4 were spent daydreaming about the sender. My mother encouraged these imaginings. She’d ask me if there was someone for whom I had shown special 5 . Perhaps it was the old man across the street whose mail I’d delivered during the winter. As a girl, though, I had more fun imagining that it might be a 6 I had run into. One month before my graduation, my father died. I felt so sad that I became completely 7 in my upcoming graduation dance, and I didn’t 8 if I had a new dress or not. But my mother, despite her own sadness, would not let me 9 any of those things. She wanted her children not only to be lovable but to feel 10 . In truth, my mother wanted her children to see 11 much like the gardenia -lovely, strong and perfect with perhaps a bit of mystery (神秘). My mother died ten days after I was married. I was twenty-two years old. That was the year the gardenia stopped 12 . ( )1. A. careful ( )2. A. take out ( )3. A. stopped ( )4. A. moments ( )5. A. practice ( )6. A. visitor ( )7. A. uncomfortable( )8. A. want ( )9. A. leave ( )10. A. needed ( )11. A. herself ( )12. A. coming B. helpful B. work out B. began B. festivals B. housework B. child B. uninterested B. hope B. miss B. noticed B. myself B. sending C. exciting C. find out C. kept C. seasons C. kindness C. lady C. unbelievable C. know C. have C. loved C. ourselves C. giving D. interesting D. put out D. loved D. holidays D. exercise D. boy D. unimportant D. care D. hear D. moved D. themselves D. growing 查看答案
题型:单项选择题 在城市规模的成本与效益分析中,横轴代表城市规模,纵轴代表城市效益与成本,其中:城市边际投入曲线与城市人均投入曲线的交点对应的城市规模是()。A.最小门槛规模B.最低成本规模C.最大效益规模D.最大产出规模 查看答案