题目内容

What is the man going to do this evening?

A. Have dinner with the woman.
B. Have dinner with his sister.
C. Go to the airport.
D. Visit the airport.

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Where does this conversation most likely take place?

At a park.
B. At a school.
C. At a party.
D. At a business meeting.

Where does the young woman study?

A. On North Campus.
B. On South Campus.
C. On East Campus.
D. On West Campus.

相邻底部分段的在切割余量时，割嘴应（）外板。

为防止变形，分段间的外板定位之后，焊接之前加装（），并且应装配好若干个（）后再开始焊接，以增大船体刚性，不易产生上翘变形。