单项选择题
A.26吋 B.9 3/4吋 C.240厘米 D.10吋
A.9 1/3吋 B.9 2/3吋 C.10吋 D.10 1/3吋
A.1/8" B.2/8" C.3/8" D.5/8"
A.#5 B.#6 C.#7 D.#8
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