定向装配的目的是为了抵消一部分相配尺寸的（）
A、加工误差
B、装配误差
C、上偏差
D、下偏差
参考答案：A
Most of the guests ______ to the party were from the same country. [ ]
A. invited
B. inviting
C. to invite
D. were invite
What a pity! Considering his ability and experience, he ____ better.[ ]
A. need have done
B. must have done
C. can have done
D. might have done
