遗传进展与世代间隔成正比。
参考答案：错
下列变形式中的移项正确的是[ ]
A．5+x=12得x=12+5
B．5x+8=4x得5x﹣4x=8
C．10x﹣2=4﹣2x得10x+2x=4+2
D．2x=3x﹣5得2x﹣3x=5
He was seen_______something at this time yesterday. [ ]
A. stealing
B. to steal
C. to stealing
D. steal
