A spiral staircase takes up less space than a normal one.

admin2013-12-06  33

问题 A spiral staircase takes up less space than a normal one.

选项 A、round
B、whirl
C、winding
D、bending

答案C

解析 spiral staircase螺旋梯;whirl旋转;winding蜿蜒的。
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