题目

 In an interview Beckham admitted that he couldn’t ＿＿ his six-year-old son Brooklyn’s maths homework and had to turn to his former Spice Girls pop star wife Victoria to help out. A. take out         B. work out       C. clear out        D. turn out 答案：B矩形的对角线长为20，两邻边之比为3：4，则矩形的面积为（ ）A．56 B．192C．20 D．以上答案都不对