It has been proved that his theory is practical 怎么变为 His theory has been proved ( )如题

来源：学生作业帮助网 编辑：作业帮 时间：2024/07/18 16:14:12
It has been proved that his theory is practical 怎么变为 His theory has been proved ( )如题
x),QH,VHJMS((/KMQ(H fE @VAQbrIfrb³';;xcB! O5\4&H͇Z_`gC//%$A``X

It has been proved that his theory is practical 怎么变为 His theory has been proved ( )如题
It has been proved that his theory is practical 怎么变为 His theory has been proved ( )
如题

It has been proved that his theory is practical 怎么变为 His theory has been proved ( )如题
to be practical

practical