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【简答题】
铸造应力为两类,由热阻碍引起的应力称为 ,而由机械阻碍引起的应力称 ; 应力在铸件落砂、清理后消失。
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反馈参考答案：
举一反三
【单选题】假定X、Y的价格的价格Px、Py已定,当MRSxy>Px/Py时,消费者为达到最满足,他将( )。
A.
增购X，减少Y
B.
减少X，增购Y
C.
同时增购X、Y
D.
同时减少X、Y
【简答题】Narrow the following broad topics using 5ws technique 1.Reality TV shows 2. Campus safety
【单选题】( )假定X和Y的价格Px,Py,当MRSxy>Px/Py时,消费者为达到最大满足,他将
A.
增购Ｘ减少Ｙ
B.
减少Ｘ增购Ｙ Ｃ. 同时增购Ｘ、Ｙ Ｄ. 同时减少Ｘ、Ｙ
【单选题】假定商品X、Y的价格为Px, Py,当MRSxy> Px/Py时,消费者为达到最大满足,将会( )。
A.
增X，减Y
B.
减X，增Y
C.
c.同时增加X、Y
D.
同时减少X、Y
【单选题】听力原文：W: They just built some new apartments near campus, but a one-bedroom rents for 500 dollars a month. M: That's bit beyond the reach of most students. Q: What does the man mean? (13)
A.
The apartments are too small for the students to share.
B.
The apartments are not quite near enough to campus.
C.
Most students can be reached at their campus address.
D.
Very few students could afford to live there.
【简答题】How can a foreign student get a living place reserved on campus before arrival?
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