题目

如图所示，在一升降机中，物体A置于斜面上，当升降机处于静止状态时，物体A恰好静止不动，若升降机以加速度g向下做匀加速运动时，以下关于物体受力的说法中正确的是( )图3－6－9A．因物体仍相对斜面静止，物体所受各力不变B．因物体处于完全失重状态，所以物体不受任何力作用C．因物体处于完全失重状态，所以物体除所受重力变为零，其他力不变D．因物体处于完全失重状态，物体除所受重力不变外，不受其他力作用【解析】：选D.物体随升Kate has a beautiful garden. _______ plants many flowers in the spring, summer and autumn . After that she does little ______ . She only _____in the garden with a radio beside her, and listens to ____ all day long. But the flowers ______well . It’s so strange(奇怪的) ! The flowers can grow well though(虽然) she ____ does anything to them , ____? Perhaps (或许) ______of us don’t know the reason(原因) , but Kate _____. She likes music, and flowers like it , ____. So music makes the flowers grow well.1.A. Her B. Her father C. She D. She’s2.A. work B. homework C. exercise D. sports3.A. eats B. drinks C. fly D. sits4.A. flowers B. teachers C. her mother D. music5.A. sing B. play C. grow D. water6.A. usually B. often C. never D. sometimes7.A. What B. Why C. Who D. When8.A. much B. no C. many D. one9.A. is B. knows C. has D. must10.A. too B. to C. two D. for