I live _______ a very big house.[ ]
A. in
B. at
C. on
答案：A
It's about nine thousand six hundred kilometres ___________ Edmonton ___________ Shijiazhuang.[ ]
A. from; /
B. from; to
C. from; for
速度单位的国际符号是“m／s”，其中文名称的正确写法是（）.
A．米秒
B．秒米
C．米每秒
D．每秒米
