He didn't to do .
A:wanted;something
B:want;anything
C:wanted;anything
D:want;something
写出下列词语的近义词。
立刻—____ 主意—____
特别—____ 羡慕—____
.函数f(x)=2sin(ωx+φ)(x∈R,ω>0,φ<π2)的部分图象如图所示,则ω,φ的值分别是( )
如图甲所示,理想变压器原、副线圈的匝数比为5:1,在原线圈两端接入如图乙所示的电压,电压表和电流表均为理想电表,R0为定值电阻,R为滑动变阻器,则下列说法中正确的是( )