A 、 快 速 右 移 + - + - B 、 中 速 右 移 - + + - C 、 慢 速 右 移 + - + - D 、 左 移 回 程 - + - + E 、 任意位置停留 - + - -
C.
C 、 慢 速 右 移 + - + -
D.
D 、 左 移 回 程 - + - +
E.
E 、 任意位置停留 - + - -
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