【多选题】Which of the following contents belong to the usages of the disinfectants ?
【多选题】Which of the usages of center lines in views are correct?
A.
Express axis of solids of revolution.
B.
Show the projection of symmetric plane of a solid in a certain direction
C.
Express crossed center lines of circular projections
D.
Express invisible outlines
【单选题】Which of the following usages of the taxes is NOT mentioned in the passage?
A.
For raising their revenues.
B.
For public works and municipal buildings.
C.
For police and fire departments.
D.
For sustaining development.
【单选题】LCA研究结果不能用于( )用途Which of the following usages could not be supported by a LCA study( )
A.
优选交通方式 The choice of traffic mode
B.
政府决策 Government decision
【单选题】动态数列中,每个指标值可以直接相加,且具有独立存在意义的是( )。
【单选题】动态数列中,每个指标数值相加有意义的是( )