使用推土机推屋墙或围墙时,其高度不宜超过()。
A.2.0m
B.2.5m
C.3.0m
D.3.5m
参考答案:B
_____ news! Our college will go to Beijing for a _____ visit this autumn.
A.What excited; three days’
B.What a excited; three days
C.What an exciting, three-day
D.What exciting; three-day
教师所具有的教育学、心理学等教育科学知识是 【 】
A.条件性知识
B.本体性知识
C.实践性知识
D.一般性知识