题目

-When are you leaving? -My plane _____ at six.A. took offB. is about to take offC. takes offD. will take off   答案:C  因为主语是飞机并非我,所以此句只是说明飞机6点起飞这个事实。  如图,四边形木框ABCD在灯泡发出的光照射下形成的影子是四边形A′B′C′D′,若AB:A′B′=1:2,则四边形ABCD的面积:四边形A′B′C′D′的面积为( )A.4:1B.:1C.1D.1:4
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