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【单选题】
对于具有理想约束的质点系,其平衡的充分必要条件是( )。
A.
作用于质点系的所有约束力在任何虚位移中所作的虚功的和等于零
B.
作用于质点系的所有约束力在任意一个虚位移中所作的虚功等于零
C.
作用于质点系的所有主动力在任意一个虚位移中所作的虚功等于零
D.
作用于质点系的所有主动力在任何虚位移中所作的虚功的和等于零
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参考答案:
举一反三
【单选题】A coupon bond pays the owner of the bond
A.
the same amount every month until maturity date
B.
the face value of the bond plus an interest payment once the maturity date has been reached
C.
a fixed-interest payment every period and repays the face value at the maturity date
D.
the face value at the maturity date
E.
none of the above
【单选题】According to the passage, a coupon is ______.
A.
part of a bond which shows the profit to the bond owner.
B.
a ticket to buy something at a lower price.
C.
a ticket that can be used as money.
D.
a ticket that shows the face value of a bond.
【单选题】A coupon bond pays the owner of the bond _________
A.
the same amount every month until maturity date.
B.
a fixed interest payment every period and repays the face value at the maturity date.
C.
the face value of the bond plus an interest payment once the maturity date has been reached.
D.
the face value at the maturity date.
E.
none of the above.
【简答题】What's the basic thinking of Confucious?
【单选题】If a bond has a face value of $1000 and a coupon rate of 4.25%, the bond owner will receive annual coupon payments of:
A.
$42.50
B.
$4.25
C.
$425.00
D.
a value that cannot be determined from the information provided.
【单选题】What‘s the overall goal of English teaching in basic education stage?
A.
Increase students' vocabulary and grammar of the knowledge.
B.
Improve students' English learning and foreign cultural interesting.
C.
Cultivate students' ability of listening and spoken English.
D.
Cultivate students' comprehensive capability of language.
【简答题】陳丞相平者陽武戶牖鄉人也少時家貧好讀書有田三十畝獨與兄伯居伯常耕田縱平使遊學平為人長美色人或謂陳平曰貧何食而肥若是其嫂嫉平之不視家生產曰亦食糠核耳有叔如此不如無有伯聞之逐其婦而棄之及平長可娶妻富人莫肯與者貧者平亦恥之久之戶牖富人有張負張負女孫五嫁而夫輒死人莫敢娶平欲得之邑中有喪平貧侍喪以先往後罷為助張負既見之喪所獨視偉亦以故後去負隨平至其家家乃負郭窮巷以斃席為門然門外多有長者車轍張負歸謂其子仲...
【单选题】What is Cristof Ruhl's basic attitude towards the renewable energy?
A.
Pessimistic and critical
B.
Supportive but with some reservation
C.
Optimistic and confident
D.
Indifferent
【单选题】coupon bond pays the owner of the bond
A.
A) the same amount every month until the maturity date.
B.
a fixed interest payment every period, plus the face value of the bond at the maturity date.
C.
the face value of the bond plus an interest payment once the maturity date has been reached.
D.
the face value at the maturity date.
E.
none of the above.
【单选题】Who is Andrew Bond?
A.
The newspaper reporter.
B.
The owner of the building.
C.
The head of the fire department.
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