填料中，太空棉的保暖程度比鸭绒要（）。A.小 B.大 C.相似 D.不可比较

室内分布系统的建设需求，包括（）。

A.在大型建筑物的低层、地下商场、地下停车场等环境下，移动通信信号弱，手机无法正常使用，形成了移动通信的盲区和阴影区

B.在中间楼层，由于来自周围不同基站信号的重叠，产生乒乓效应，手机频繁切换，甚至掉话，严重影响了手机的正常使用

C.在建筑物的高层，由于受基站天线的高度限制，无法正常覆盖，也是移动通信的盲区

D.另外，在有些建筑物内，虽然手机能够正常通话，但是用户密度大，基站信道拥挤，手机上线困难

235平方分米=______平方米0.13平方分米=______平方厘米．

热力学温标T与摄氏温标t的关系为（）。

A.T=t+273.15

B.T=t-273.15

C.T=t±273.15

D.T=t±273.15

We know a computer is a machine that processes data (stored in main memory) into information, under control of a stored program. We also know that, internally, a computer is a binary machine; thus the data and the program instruictions must be stored in binary form. Characters are represented in (71) . Numbers are stored as binary numbers, with each bit’s positional value significant. A computer’s main memory is divided into bytes, words or both (depending on the system), and each of these basic storage units is assigned an (72) . Using this address, the processor can read or write selected bytes or words.

The processor consists of a clock, an instruction control unit, an arithmetic and logic unit, and registers. Once a program is stored in main memory, the processor can begin to execute it. During (73) , the instruction control unit fetches an instruction from main memory; during (74) , the arithmetic and logic unit executes it. Precisely timed electronic pulses generated by the clock drive this basic (75)

（72）处填（）。

A．address

B．value

C．content

D．register

以下关于放射性污染防治的环境影响评价的说法与《放射性污染防治法》的规定相一致的是( )。

A．核设施营运单位应当在申请领取核设施建造、运行许可证和办理装料、退役审批手续前编制环境影响报告书

B．核设施的环境影响报告书须报国务院环境保护行政主管部门审查批准

C．开发利用或者关闭铀(钍)矿的单位，应当在申请领取采矿许可证或者办理退役审批手续前编制环境影响报告书

D．以开发利用铀(钍)矿为主营业务的单位，其所编制的环境影响报告书未经环境保护部门批准的，工商行政主管部门不得颁发营业执照

E．开发利用或者关闭铀(钍)矿的环境影响报告书须报省级以上环境保护行政主管部门审批