📄 软考英语精典短文每日一练(中英对照)2006年9月25日.htm
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主题：软考英语精典短文每日一练(中英对照)2006年9月25日</STRONG></TD></TR>
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<TD width=64>作 者</TD>
<TD width=233>shixian</TD>
<TD width=63>阅读次数</TD>
<TD width=85>613</TD>
<TD width=63>回复次数</TD>
<TD width=85>15</TD></TR>
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<TD width=64>所属栏目</TD>
<TD width=233>基础应用与新手入门>> IT英语</TD>
<TD width=63>发表日期</TD>
<TD width=85>2006-9-25</TD>
<TD width=63>回复日期</TD>
<TD
width=85>2006-10-9</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
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src="软考英语精典短文每日一练(中英对照)2006年9月25日_files/top-2.gif"><BR>
<DIV class=userInfoBox>积分：2575<BR>第二级</DIV>
<DIV class=userInfoBox>注册时间<BR>2006-6-12</DIV></DIV></TD>
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<DIV class=TitleInfoBox align=right>发表时间：2006-9-25 8:41:56 楼主</DIV>
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<P>不好意思,一个星期没给大家发帖了,,,现在补上</P>
<P>这个习题是接着9月15日阅读的</P>
<P>EXERCISES <BR>1．Multiple choices． <BR>（1）RISC is ． <BR>a．abbreviation
of complex instruction set computer <BR>b．abbreviation of reduced
instruction set computer <BR>c．guided to be built from studying the
execution behavior of high-level language programs <BR>d．used for many
computer manufacturers nowadays <BR>（2）To enhance performance of a
computer system we should ． <BR>a．improve the pattern of referencing
operand <BR>b．optimize the simple movement of data <BR>c．use IF and LOOP
instructions as many as possible <BR>d．optimize the basic sequence control
mechanism <BR>（3）Simple instruction formats of RISC mean ．
<BR>a．instruction length is fixed <BR>b．instruction length is variable
<BR>c．field locations are fixed <BR>d．field locations of the opcode are
fixed <BR>（4）Instruction execution characteristics include mainly ．
<BR>a．execution sequencing <BR>b．operands used <BR>c．operations performed
<BR>d．number of instructions <BR>（5）Register storage has ． <BR>a．a large
capacity b．a small capacity <BR>c．the slower speed d．the faster speed
<BR>（6）Instruction format in RISC has ． <BR>a．one kind b．many kinds
<BR>c．a few kinds d．one or a few kinds <BR>（7）CISC machine instractions
compared with RISC machine are ． <BR>a．more complicated b．more simple
<BR>c．more faster to be executed d．more slower to be executed
<BR>（8）Functions of the compiler used in RISC are ． <BR>a．to compile a
high-level language program <BR>b．to optimize register usage <BR>c．to
maximize register usage <BR>d．to allocate registers to those variables
that will be used the most in a given time <BR>period <BR>（9）One machine
cycle in RISC has ． <BR>a．two machine instructions b．three machine
instructions <BR>c．one machine instruction d．four machine instructions
<BR>（10）The register file is ． <BR>a．physically small b．physically large
<BR>c．one the same chip as the CPU d．addressed by much shorter addresses
<BR>2．Fill in the blanks． <BR>（1）The key characteristics of RISC machines
include ． <BR>（2）To enhance performance of instruction pipeline there are
fewer and more <BR>performed per instruction． <BR>（3）Operations performed
in RISC are taken by the processor and its interaction with <BR>．
<BR>（4）The memory organization for storing operands is determined by ．
<BR>（5） simplifies the instruction set and therefore the control unit．
<BR>（6）An instruction should execute faster because it is not necessary to
access a ． <BR>（7）There are two basic methods to use registers，they are
based on ． <BR>（8）In RISC almost all instructions are ． <BR>（9）More
complex addressing modes can be from the simple modes． <BR>（10）With fixed
opcode can occur simultaneously． <BR>a．the types of operands and frequency
of their use <BR>b．a limited instruction set，a large number of registers
and optimizing the instruction pipeline <BR>c．simple register addressed
<BR>d．microprogram control store during instruction execution <BR>e．opcode
decoding and register operand accessing <BR>f．predictable operations
<BR>g．software and hardware <BR>h．the design feature of operation being
register-to-register <BR>i．memory <BR>j．synthesized <BR></P></DIV></TD></TR>
<TR bgColor=#ffffff>
<TD class=hai vAlign=top align=middle width=83 height=70>
<DIV align=center><A class=chinablue title=给他/她留言
href="http://po.csai.cn/write_shortmess.asp?func=0&username=shixian"
target=_blank>shixian</A><BR><IMG alt=等级2
src="软考英语精典短文每日一练(中英对照)2006年9月25日_files/top-2.gif"><BR>
<DIV class=userInfoBox>积分：2575<BR>第二级</DIV>
<DIV class=userInfoBox>注册时间<BR>2006-6-12</DIV></DIV></TD>
<TD class=bbsmain style="WORD-BREAK: break-all; WHITE-SPACE: normal"
vAlign=top align=left height=70>
<DIV class=TitleInfoBox align=right>发表时间：2006-9-25 8:45:21 第1楼</DIV>
<HR style="MARGIN-TOP: -5px; COLOR: #cccccc" align=center width="100%"
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<DIV id=cont_right style="WIDTH: 495px">
<P>习题答案:</P>
<P>1．（1）b，c，d </P>
<P>（2）a，b，d </P>
<P>（3）a，c，d </P>
<P>（4）a，b，c </P>
<P>（5）b，d </P>
<P>（6）a，c，d </P>
<P>（7）a，d </P>
<P>（8）b，c，d </P>
<P>（9）c </P>
<P>（10）a，c，d</P>
<P><BR>2．（1）b</P>
<P> （2）f </P>
<P>（3）i </P>
<P>（4）a </P>
<P>（5）h </P>
<P>（6）d</P>
<P> （7）g </P>
<P>（8）c </P>
<P>（9）j </P>
<P>（10）e <BR></P></DIV></TD></TR>
<TR bgColor=#f5f5f5>
<TD class=hai vAlign=top align=middle width=83 height=70>
<DIV align=center><A class=chinablue title=给他/她留言
href="http://po.csai.cn/write_shortmess.asp?func=0&username=fuwenqi"
target=_blank>fuwenqi</A><BR><IMG alt=等级3
src="软考英语精典短文每日一练(中英对照)2006年9月25日_files/top-3.gif"><BR>
<DIV class=userInfoBox>积分：9420<BR>第三级</DIV>
<DIV class=userInfoBox>注册时间<BR>2006-8-17</DIV></DIV></TD>
<TD class=bbsmain style="WORD-BREAK: break-all; WHITE-SPACE: normal"
vAlign=top align=left height=70>
<DIV class=TitleInfoBox align=right>发表时间：2006-9-25 9:21:24 第2楼</DIV>
<HR style="MARGIN-TOP: -5px; COLOR: #cccccc" align=center width="100%"
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