A.D=6.7m,H=6.9m B.D=4.7m,H=7.0m C.D=3.

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问题 A.D=6.7m,H=6.9mB.D=4.7m,H=7.0mC.D=3.7m,H=11.0mD.D=5.7m,H=5.1m

选项 A.D=6.7m,H=6.9m
B.D=4.7m,H=7.0m
C.D=3.7m,H=11.0m
D.D=5.7m,H=5.1m

答案 B

解析
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