【判断题】在分离体上画出全部约束反力就成为受力图。
【单选题】在纯电容正弦交流电路中,若电压有效值不变增加电源频率时,则电路中的电流将( )
【单选题】在纯电容正弦交流电路中,若电压有效值不变增加电源频率时,则电路中的电流将( )。
【多选题】Which of the following are included in the general rules of self-editing?
A.
Read your paper aloud when you are in the process of editing.
B.
When working on a timed essay, budget 10-15% of your time for editing.
C.
To help you see each word, read your paper backward while editing.
D.
To be as fresh as possible, edit your paper immediately after you finish writing it.
【判断题】刀具磨损,刀具的热变形是车削箱体零件的孔时产生圆柱度的主要原因。A. 对 B. 错