【C9】A．townsB．factoriesC．minesD．farms

Animal farming about half of all human－caused greenhouse gases.A、count forB、accounts for

A．Bicycles.B．Cars.C．Machines.D．Farm tools.

Pedro strutted about like a rooster becauseA．he owned a chicken farm and studied how roost

A．Farm workers.B．White－collar workers.C．Blue－collar workers.D．Not mentioned.

根据下列材料，请回答题Clone FarmFactory farming could soon enter a new era of mass producti

They had a far better 【yield】 than any other farm