【单选题】【消耗次数：1】
某一可调电阻标示为504，其阻值应为_______。
①
5M?
②
500k
③
50M
④
50k
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相关题目
【单选题】
设刚体的动量为K，其质心的速度为vC，质量为M，则
①
K=MvC式只有当刚体作平移时才成立；
②
刚体作任意运动时，式K=MvC恒成立；
③
刚体作任何运动时，其上各质点动量的合成的最后结果必为一通过质心的合动量，其大小等于刚体质量与质心速度的乘积；
④
刚体作任何运动时，其上各质点动量合成的最后结果，均不可能为一通过质心的合动量。
【单选题】
窗体上画一个名为Command1的命令按钮，然后编写以下程序：
Private Sub Command1_Click()
Dim m(10) As Integer
For k = 1 To 10
m(k) = 12 - k
Next k
x = 8
Print m(2 + m(x))
End Sub
运行程序，单击命令按钮，在窗体上显示的是 。
①
6
②
5
③
7
④
8
随机题目
【判断题】
Anglo-Saxon vocabulary is usually regarded as the main body of the English vocabulary.
①
正确
②
错误
【判断题】
When efficiency and formality are in conflict, the fast-paced modern people often sacrifice the latter.
①
正确
②
错误
【单选题】
The sense relation between “fruit”and “apple”is _______.
①
hyponymy
②
polysemy
③
homonymy
④
synonymy
【单选题】
Noticeable changes of English words in recent years consist of the following characteristics EXCEPT___________ .
①
increasing use of abbreviation
②
increasing use of open compounds
③
increasing use of clauses
④
increasing use of conversion
【单选题】
Historical linguistics reveals that the English vocabulary sprang from three major root sources:_______.
①
Italian, Latin, Greek
②
French, Germanic, Greek
③
Germanic, Latin, Greek
④
Germanic, Italian, French
【判断题】
As an individual branch of linguistics, lexicology has nothing to do with other branches of linguistics.
①
正确
②
错误
【判断题】
Two more newly emerged disciplines that are related to lexicology are computational lexicology and phraseology.
①
正确
②
错误
【判断题】
A word is a symbol, a representation of something in life, either physical or abstract.
①
正确
②
错误
【判断题】
Although a society is changing , the vocabulary in a language is always stable, and is never changing.
①
正确
②
错误