地块控制性指标分为规定性和指导性两类,属于指导性指标的为( )。
A.人口容量、建筑形式B.用地面积、性质C.容积率D.建筑密度
参考答案:A
简述机械振动式调压器的工作原理。
Terry, please your cell phone when Grandma is talking to you.
A.look up from
B.look into
C.look back on
D.look through