通信系统中，称调制前的电信号为（）信号，调制后的电信号为（）信号。

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（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

以电信机房和网络资源为依托，以高水平专业化技术支撑队伍为基础，为客户提供设备托管以及相关增值服务，并定期向客户收取下相应服务费用的业务是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

WCDMA通信系统中，用户对室内覆盖的要求越来越高。下面是某运营商某大楼的WCDMA室内分布式系统的解决方案示意图，请根据下图回答以下问题： 在设计室内分布式系统过程中，要充分考虑到室外WCDMA宏小区信号对室内分布式系统造成的干扰，一般来说室内分布式系统的信号比室外宏蜂窝小区最强信号高多少dB可以满足设计要求？在用一个分布式系统覆盖多个楼层时，为了保证各个楼层信号基本均匀分布，在信号源位置设计时应注意满足什么要求？