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把诗句补充完整

上一题下一题 0.0难度选择题更新时间:2012-06-05 07:47:08

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同类题1

下列句子中划线词没有古今异义的一项是（）

同类题2

圆的位置由____确定；圆的半径决定圆的____；画圆时圆规两脚间的距离是圆的____．

同类题3

Dear Amy,

Thanks for your letter. It's always nice to hear from you.

Today is the last day of my exams. The maths exam is very difficult, but other exams are easy. I'mwaiting for the holidays now, and I'm very anxious to see you and to be with you again. I'm going to spend my Christmas and New Year holidays in New York with my sister. I'm going down town. I'm going to go shopping for Christmas gifts. I'm excited about Christmas, and about seeing you again.

Yours,

Jack

同类题4

建于浙江江厦的双向潮汐发电站是我国第一座潮汐发电站。若该发电站水库面积为1.37×10⁶m²，水流发电的效率为22%，涨潮落潮的平均潮差约为5m，每昼夜可发电约13小时。求：

同类题5

如图，在圆心角为90°的扇形OAB中，半径OA=2cm，C为

\hat{A B}

的中点，D、E分别是OA、OB的中点，则图中阴影部分的面积为____ cm²．

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