《齐民要术》分上、下册,上册主要介绍农产品养殖技术,下册主要介绍()。
参考答案:食品加工工艺
On hearing a great noise, Mike looked forward through the window ()what happened outside the room.
A.to seeing
B.to see
C.seeing
D.to have seen
()做好当班安全检查,如实填制有关台账与报表。