题目

阅读理解Mary:09: 05: 10Niceto meet you!Kate:09: 05: 12Niceto meet you, too! Mary:09: 05: 15Myfirst name is Mary and my last name is Smith. Iam in the UK. My favorite color is blue. Can you tell me something about yourself(你自己)?Kate:09: 06: 07Hi,Mary! My name is Kate Black and I am in China. My favorite color is yellow. My telephonenumber is 346-9987. What's your telephone number?Mary:09: 07: 03Myphone number is 437-0386. You can call me. Kate:09: 07: 45Thankyou, Mary!Mary:09: 08: 01You'rewelcome. Bye! （1） Kate is in. A . China B . the UK C . the USA D . Beijing 如图所示是我市部分中小学投入使 用的新型安全校车，这种校车 的性能完全符合校车12项安全标准。⑴．若校车和学生总质量为9000kg, 则所受的重力是多少？⑵．若车轮与地面的接触总面积为0.15m2，求校车对水平路面的压强；