【单选题】
These plants are rather difficult（）
A、to look after
B、to be looked after
C、being looked after
D、looking after
查看正确答案A、A.plant B、B.planting C、C.being planted D、D.planted
搜题
更多“These plants are rather difficult（）”相关的问题
第2题
A、只能在空中放出RAT，只能在地面收起RAT B、可在空中放出和收起RAT，可在地面放出和收起RAT C、可在空中放出和收起RAT，可在地面收起RAT D、可在空中放出RAT，可在地面放出和收起RAT
第3题
A、A. These hatches are usually driven by electric or hydraulic power. B、B. These hatch covers are usually driven by electric or hydraulic power. C、C. These hatch covers are usually driven by electric. D、D. These hatch covers are usually driven by hydraulic power.
第5题
A、steam plants, electric motors and compressed air B、diesel engine, hydraulic machinery and compressed air C、steam plants, electric motors and hydraulic machinery D、diesel engines, steam plants and hydraulic machinery
