Lucy sits the third row, Jim's left.
A:on; on
B:in; at
C:in; on
某人面对山崖大喊一声,经过1.2s后听到自己的回声,则此人与山崖之间的距离为多少米?(设当时的气温为15℃)
— It's about 10 kilometers.
“中东”通常是指( )