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发表于 2009-5-14 19:37:30
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来自: 中国江苏扬州
1. a 弧之长度为何?# d" g2 W+ S. U B
a. 69.4652 b. 69.6452 c. 69.56428 X( t. A. K5 R) f: ?
2. b 之半径值为何?( G, y; g4 J% ]3 w' Y, V' i" w
a. 8.1584 b. 8.5184 c. 8.8154/ j0 p& x7 J" I9 V4 G: r, A
3. DE 之距离为何?, J0 C2 x# S0 z2 ~ s
a. 52.3349 b. 52.3439 c. 52.4339
: o; \) } L+ d: \, [' ]4. ∠ABC 之角度值为何?5 Y& Q s" k# B4 C! m
a. 87.0561° b. 87.5061° c. 87.6510°: w8 ~2 O0 Y1 i! n/ L M
5. 剖面线区域之面积为何?1 D1 q) C( q, z8 n0 G
a. 1321.0485 b. 1321.4085 c. 1321.8405" n; F8 ~0 p) I& @" S+ \7 k
abcab# U) R1 I8 C& j/ K- k+ F- L+ a
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