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【单选题】
圆筒形容器工作压力为2MPa,壳体内径为1000mm,壁20mm,则圆筒形壳体截面上的应力、环向应力值是( )。A.
255MPa、51MPa
B.
25MPa、50MPa
C.
51MPa、255MPa
D.
50MPa、25MPa
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举一反三
【简答题】The over-the-counter (OTC) market is an example
of a(n)A. dealer market. B. brokered market. C. auction market. D. equilibrium market.
【简答题】Where was Goblin's capital?
【单选题】A(n) _____ market is a period of declining or sluggish stock prices.
A.
inflationary market
B.
deflationary market
C.
bull market
D.
bear market
【多选题】在对两个总体均值之差的区间估计中，符合使用正态分布的有( )。
A.
从正态总体中抽取小样本，总体标准差已知
B.
从正态总体中抽取大样本，总体标准差已知
C.
从正态总体中抽取小样本，总体标准差未知且相等
D.
从非正态总体中抽取大样本，总体标准差未知
E.
从正态总体中抽取小样本，总体标准差未知且不等
【单选题】The over-the-counter (OTC) market is an example of a(n)
A.
dealer market.
B.
brokered market.
C.
auction market.
D.
equilibrium market.
【简答题】The type of market in which there is direct
interaction between buyers and sellers is a(n)A. brokered market. B. auction market. C. dealer market. D. primary market.
【单选题】When secondary market buyers and sellers of securities meet in one central location to conduct trades the market is called a(n) ( )
A.
exchange.
B.
over-the-counter market.
C.
common market.
D.
barter market.
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