Where does this conversation most likely take place?
At a park.
B. At a school.
C. At a party.
D. At a business meeting.
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Where does the young woman study?
A. On North Campus.
B. On South Campus.
C. On East Campus.
D. On West Campus.
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。
分段接缝在进行定位焊时,往往会产生骨架与骨架对不准的现象;这时可将一根骨架与板间的( )拆去约一档肋距,而将其( )或借对。