平面尺寸的第二道尺寸：表示轴线间的距离，说明及尺寸。
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平面尺寸中的第三道尺寸：表示 位置及大小，如门窗洞宽度位置、墙、柱的大小位置等，应从轴线注起。
What is the day when the conversation takes place?[音频]
A. Friday
B. Saturday
C. Sunday
D. Monday
What Major does the man choose at last?
A. English
B. History
C. Biology
D. Geology
Which of the following statemnet is true?
A. The man's list is longer.
B. The woman's list is longer.
C. Their reaking list is of the same length.
D. The man has more than 57 books.
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