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【单选题】
Because I Could Not Stop for Death Because I could not stop for Death— He kindly stopped for me— The carriage held but just Ourselves— And Immortality. We slowly drove—He knew no haste, And I had put away My labour, and my leisure too, For His Civility— We passed the School, where children played At Recess—in the Ring— We passed the fields of gazing grain— We passed the Setting Sun. We paused before a house that seemed A swelling of the ground— The roof was scarcely visible— The cornice but a mound. Since then—tis centuries; but each Feels shorter than the Day I first surmised the Horses’ Heads Were toward Eternity— The image of death presented in stanza 1 is that of
A.
an indifferent driver.
B.
the problems man encounters.
C.
an immortal god disguised as a human.
D.
none of the above
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举一反三
【单选题】已知某商品的需求函数和供给函数分别为:Q d =14-3P,Q S =2+6P,该商品的均衡价格是( )
A.
4/3
B.
4/5
C.
2/5
D.
5/2
【单选题】属于承德石油的景点
A.
小布达拉宫
B.
避暑山庄
C.
天承湖
D.
金龙广场
【单选题】已知某商品的需求函数和供给函数分别为:Q=14-3P,Q=2+6P,该商品的均衡价格是
A.
4/3
B.
4/5
C.
2/5
D.
5/2
【单选题】II型呼吸衰竭可给予吸入的氧浓度是
A.
<30%~35%
B.
<50%
C.
>50%
D.
35%~40%
E.
纯氧
【单选题】已知某商品的需求函数和供给函数分别为: Q D =14 − 3 P , Q S =2+6 P ,该商品的均衡价格是( )。
A.
4/3
B.
4/5
C.
2/5
D.
5/2
【单选题】II型呼吸衰竭可给予吸入的氧浓度是
A.
25%-29%
B.
<50%
C.
>50%
D.
35%-40%
E.
100%
【单选题】设 X 为型随机变量,则 D ( 2X - 3 ) =( )
A.
2D ( X ) +3
B.
2D ( X )
C.
2D ( X ) - 3
D.
4D ( X )
【单选题】II型呼吸衰竭可给予吸入的氧浓度是
A.
25%~29%
B.
﹤50%
C.
﹥50%
D.
35%~50%
E.
100%
【简答题】已知某商品的需求函数和供给函数分别为Q d =10-2P,供给函数为Q s =2+6P。 请计算:该商品的均衡价格和均衡数量。
【判断题】处理化学品工作后洗手,可预防患皮肤炎。
A.
正确
B.
错误
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