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【简答题】
请设置三个以上图层,不同颜色、线型。 独立完成作图。
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举一反三
【单选题】... a new generation of Americans, born in this century, tempered by war, disciplined by a hard and bitter peace,...
A.
strengthened
B.
regulated
C.
alleviated
D.
trained
【简答题】...a new generation of Americans, born in this
century, tempered by the war, disciplined by a hard and bitter peace ...
【简答题】A．Pollution of the environment. B．A new generation of pest killers. C．Over-killing by hunters. D．Destruction of their natural homes.
【多选题】根据玻尔兹曼分布律
A.
能量越大的状态，粒子数越少.
B.
能量越大的状态，粒子数越少多.
C.
玻尔兹曼分布律只对理想气体成立.
D.
对处于平衡态的其它经典粒子构成的系统也成立.
【单选题】下述关于玻尔兹曼分布的说法,哪个是不正确的?
A.
玻尔兹曼分布是动态分布
B.
玻尔兹曼分布是热平衡条件的分布
C.
对玻尔兹曼分布,高能级上的粒子数密度总是大于低能级上的粒子数密度
D.
玻尔兹曼分布是统计分布
【单选题】─How old is your daughter? ─___,we had a birthday party for her___birthday last week.
A.
Nine;ninth
B.
Nine;nine
C.
Ninth;nine
D.
Ninth;ninth
【单选题】—How old is your daughter? —________. We had a special party for her ________ birthday last Sunday. [ ]
A.
Nine, nine
B.
Nine, ninth
C.
Ninth, nine
D.
Ninth, ninth
【多选题】下述关于玻尔兹曼分布的说法,哪些描述是正确的?
A.
对玻尔兹曼分布，高能级上的粒子数密度总是大于低能级上的粒子数密度
B.
玻尔兹曼分布是动态分布
C.
玻尔兹曼分布是统计分布
D.
玻尔兹曼分布是热平衡条件的分布
【简答题】试证明：玻尔兹曼分布的涨落为 .
【单选题】Which of the following would the best title for the text?
A.
A New Generation of Artists.
B.
Video Art is Going Nowhere.
C.
A Cradle of Famous Artists.
D.
New Art for the MTV Generation.
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