A:y2=﹣2x
B:y2=﹣4x
C:y2=﹣8x
D:y2=﹣16x
You have no idea what I've had to ______ in finding the proper job in the last few months.
3×(67-58)=____ 5×7+28=____
圈一圈,数一数。
圈一圈 ____
有____个