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单选题
Use a tube which is 3.3 feet long.
A
A.Use the tube if it＇s worked into 3.3 feet long.
B
B.Use a tube whose length is 3.3 feet.
C
C.The tube which is used is 3.3 feet length.
答案解析
正确答案：B
解析：
在英语中，当我们描述一个特定的物品时，通常使用定冠词"the"。在这道题中，正确的表达方式是"use a tube whose length is 3.3 feet"，使用了定冠词"the"来描述特定的管子长度。
相关知识点：
用3.3英尺长的管子要记着
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