A:have lived; was
B:live; was
C:have lived; have been
D:live; have been
欲建一座房子,使它的四周窗户都朝北,这座房子应建在( )
近代以来,农耕时代的粗略时间观念逐渐被精确的现代钟表时间观念所替代。对此时间观念改变影响最大的是( )
28+22=____