海水淡化厂主要分布地区是( ) ①沿海湿润、半湿润地区 ②沿海干旱、半干旱地区 ③淡水供应困难的岛屿 ④沿海缺水城市 A.①② B.②③
如图所示，表示互为相反数的点是（ ）A．点A和点DB．点B和点C;C．点A和点CD．点B和点D
If you are worried that the tickets will sell out, you can buy a ticket . A. in a row B. in advance C. on time D. tim
鸟类身体上最发达的肌肉是( ) A、胸部肌肉 B、颈部肌肉 C、两翼肌肉 D、后肢肌肉
若|2x－3|+|3y+2|=0，则x－y=_____.
设有三点A(1,2)、B(2,-3)、D(3,10)和曲线C:x2-xy+2y+1=0,则在曲线C上的点是_____________.
What he has done has a bad effect ________ the children. A. in B. on C. by
Saying goodbye to a sport you love is hard. But Kobe Bryant took an even harder, _____61___(pain) route: His goodbye lasted for nearly three years. For many, Bryant is a legend. He started
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