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Question 1 of 5
1. Question
如图所示， ABCD为一梯形， AD=40cm, BC=32cm, 两个内圆直径皆为14cm, 求阴影部分的面积。
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Question 2 of 5
2. Question
于轩高1.7m， 他站在离旗杆12m远的地方参加升旗礼， 他抬眼仰望旗杆的角度为45°。试求旗杆的高度。
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Question 3 of 5
3. Question
若[latex] 5^{p}= \frac{1}{125} [/latex]， 则[latex]p=?[/latex]
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Question 4 of 5
4. Question
[latex] ( \frac{32}{243} )^{ \frac{2}{5} } \times ( 64^{0} )^{ \frac{1}{2} } [/latex]
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Question 5 of 5
5. Question
AB 与 AC 是切线。 求角∠BDC。
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