题目

如图所示，在水平地面上M点的正上方h高度处，将S1球以初速度v1水平向右抛出，同时在地面上N点处将S2球以初速度v2竖直向上抛出，在S2球上升到最高点时恰与S1球相遇，不计空气阻力，则两球在这段过程中（） A . 做的都是变加速运动 B . 速度变化量的大小不相等 C . 速度变化量的方向不相同 D . 相遇点在N点上方 处配对阅读 左栏是五则寻找宠物的启事，右栏是七则宠物招领的启事。请根据左右两栏的信息帮助宠物的主人找到丢失的宠物。1.Animal LOST5/23/2014A black cat, old and thin. He's about14 years old. Our children have grown up with him and he is part of our family. If you see him, please call us right away.Posted by: Debbie64241112.Animal LOST6/5/2014Medium short haired, all black, about two years old, ears standing up, a very sweet dog.Posted by: Kori34805423.Animal LOST5/4/2014A dog,3 months old. She is brown with white hairs on her chest. Her eyes are greenish colored. Her nose is pink.Posted by: Senia34054424.Animal LOST4/30/20141/2 years old. She has big ears and white chest with white front legs. She is a small dog and weighs about6 pounds. One of her front legs got hurt, so she walks with difficulties.Posted by: Jennifer Tomlinson36077345.Animal LOST5/11/2014Our pet is a small, medium white haired,4-year-old cat. She has two big eyes and they are bright green.Posted by: Lauren2407131 A. I found a cat in my backyard around NW Street on May 11th, 2014. It's a small cat with white hairs and big green eyes. Please call Paul Smith at 9503341.B. A wounded(受伤的) dog was found at the corner of my house at Millplain on April 30th, 2014. She has white front legs and big ears. Please call me at 9108846.C. A white dog was found in our yard playingwith our dog on March 23rd, 2014. She isa lovely big dog. There seems something wrong with one of her legs. Adamson at 8024156.D. Our kids found a cat close to our house atSW Alexander Street. It's a black cat. It isold and thin. Please call Gordon at 7768585.E. A cat was found in my garden on April 30th, 2014. It's old and thin. Please call Jeff at 8034477.F. A baby dog was found around KauffmanStreet. It's about 3-5 months old. She hasgreen eyes and a pink nose. Please callMorrie at 9019968.G. I found a dog at Molalla Area on June 5th,2014. It's a small black dog, about 2 yearsold. Please call Larry at 7058864.