问题
多项选择题
乒乓球拍可以是（）
A、任意大及任意小
B、底板应平整、坚硬的木材
C、要保证85%以上是木材
D、可以全部用碳纤维材料
答案
参考答案：A, B, C
搜题请搜索小程序“爱下问搜题”
乒乓球拍可以是（）
A、任意大及任意小
B、底板应平整、坚硬的木材
C、要保证85%以上是木材
D、可以全部用碳纤维材料
参考答案：A, B, C
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| Tim was ten years old. He was not a very good pupil, and he did not like 1 to do homework because he enjoyed 2 other things in his free time. Frequently he did not do his homework and when he did do it he always 3 a lot of mistakes. One day his mathematics teacher 4 Tim's homework and saw that he 5 all his sums right. He was very pleased and rather 6 . He called Time to his desk and said to him. "You got all your homework right this time, Tim. What 7 ? Did you father help 8 ?" Usually Tim's father did help him 9 his homework, but the evening before this, he had not been able to, because he had not been at home, so Tim answered, "No, sir, he was very busy last night, so I had to do it all 10 ." | ||||
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