【简答题】第二节 ( 共 10 小题;每小题 1.5 分,满分 15 分 ) 阅读下面短文,在空白处填入 1 个适当的单词或括号内单词的正确形式。将答案填写在答题卡的相应位置。 Xuan paper , known as one of the Four Treasures of the Study , first came into 61.____________ (exist) in the Tang D...
【单选题】一Helen,Will you be at the party tonight? 一Yes,but I have so much homework to do that I really ________.
【单选题】以下关于扭摆法测定转动惯量的判断正确的是:
B.
塑料圆柱体的摆动周期其实不需要测量,因其转动惯量可由理论计算得到;
C.
只要已知标准圆柱体的转动惯量,即使不知道弹簧的劲度系数,圆筒的转动惯量也可以通过其摆动周期求得;
D.
以圆柱体的转动惯量作为标准,用比较法测量其他物体的转动惯量。
【多选题】用比较法确定弹簧扭转系数时,需要用到的物理量是
【简答题】Passage Four According to comScore, Facebook is the leading social networking site based on monthly unique visitors, having overtaken main competitor MySpace in April 2008. According to Alexa, the web...
【简答题】尽管有残疾,杰克和其他人一样过着正常的生活。(as ... as ...) In spite of disability, Jack can live ________________ everybody else.
【单选题】The jack is ________ sale today. You can save as much as 50% percent off.
【简答题】已知多边形的内角和为540°,则该多边形的边数为______.