某居住小区已建三层住宅,其建筑面积为 18000 ㎡,六层住宅建筑面积为 32400 ㎡,小区住宅建筑的平均层数是( )层?

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

已知某居住小区规划用地面积为50公顷，规划建设高层、小高层、多层住宅和配套设施等，规划住宅建筑面积约为49万m ²，公共建筑4.2万m ²。计划各类建筑及控制指标如下表所示。求 1）平均层数 2）住宅用地控制面积（住宅用地面积） 3）住宅面积净密度（住宅建筑面积净密度） 4）住宅面积毛密度 5）容积率

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

建筑物层数大于40层时，不论住宅建筑或公共建筑，均为超高层建筑。（）

《住宅建筑规范》中，当建筑中有一层或若干层的层高超过（　）时，应对这些层按其高度总和除以（　）进行层数折算，余数不足（　）时，多出部分不计入建筑层数。