Haven’t you got friends in Paris? I feel sure you did mention them once. A. any B. no C. some D. lots
近几年，随着互联网的普及和广泛运用，政治博客逐渐成为一种新型的政治参与和民意表达的“绿色通道”。从“最牛钉子户”到“山西黑煤窑”、从
—Mum,where are my socks? —Under your bed.You should your things. A.put on B.put down C.put away D.put off
He spent about 200 yuan ____________ in chatting on phone this month. A. in all B. in total C. altogether D. all of the above
He was in hospital for six months. He felt as if he was _______ from the outside world. A. cut out B. cut off C. cut up D. cut through
下列说法正确的是A．合外力对质点做的功为零，则质点的动能、动量都不变B．合外力对质点施的冲量不为零，则质点动量必将改变，动能也一定变C．
一物体从斜面顶端由静止开始匀加速滚下，到达斜面中点用时1 s，速度为2 m/s，则下列说法正确的是( ) A．斜面长度为1 m B．斜面长度为2 m C．物体在斜
最近，科学家发明了一种制作防火涂料的新工艺。该涂料是用含有淀粉的植物性废料加工成的无色糊状物。发生火灾时，这种涂在房屋楼板表面的涂料
