( )形态是应用采光装置,使60%~90%的光线往上投射,只有10%~40%的光线经由顶棚或墙壁再往下反射。
A.直接采光
B.半直接采光
C.间接采光
D.半间接采光
参考答案:D
John was dismissed last week because of his ______ attitude towards his job.
A.informal
B.casual
C.determined
D.earnest
食用菌的驯化