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1、I.True/False1.(F)Identifiersconsistoflettersanddigitsinanyorder,butmustbeinlowercase.2.(T)Wecreatemodularprogramsbecausetheyareeasiertodevelop,correctandmodify.3.(F)Allcomputersusetwicetheamountofstoragefordoubleprecisionthanfloatingpointdatatype4.(F)Staticvariableisnotcreate
2、danddestroyedeachtimethefunctioniscalled,itisthedefaultstorageclassusedbyC.5.(T)AcompoundstatementmaybeusedanywhereinCprograminplaceofasinglestatement.6.(F)InClanguage,alloperatorsarebinaryoperatorwhichconnectingtowoperandsside-by-side.7.(T)TheEscapeSequenceisacombinationsofa
3、backslash()andacharacterthattellsthecompilestoescapefromthewaysthesecharacterwouldbenormallyinterpreted8.(T)Externstorageclassistoextendthescopeofaglobalvariablebeyonditsnormalboundary-file.itdoesnotcausethecreationofanewvariable.9.(F)Afterdefined,thesymbolicnamescanbeusedin
4、anystatementandtheprogramcanchangethevalueofthesymbolicnames.10.(T)Themistakeofusingtheassignmentoperator”=”inplaceoftherelationaloperator”==”resultsinainvalidCexpressionII.Choice11.(C)Forthealgebraicexpression3ae/bc,whichofthefollowingCexpressionisinvalidA)a/b/c*e*3B)3*a*e/b
5、/cC)3*a*e/b*cD)a*e/c/b*312.(D)Forthedeclarations:charw;intx;floaty;doublez;thedatatypeofthevalueofw*x+z-yisA)floatB)charC)intD)double13.(B)Forfollowingdeclaration,whichexpressionwillnotresultin3?intx[10]={0,1,2,3,4,5,6,7,8,9},*p1;A)x[3]B)p1=x+3,*p1++C)p1=x+2,*(p1++)D)p1=x+2,*
6、++p114.(A)Whichoneisnotendlessloop?A)for(y=0,x=1;x>++y;x=i++)i=x;B)for(;;x++=i);C)while(1){x++;}D)for(i=10;;i--)sum+=i;11.(B)Theresultofthefollowingprogramismain(){inta=-2,bdo{b=++a;if(!b)printf(“#”);elseprintf(“*”);}while(a<1)}A}#*#B}*#*C)###D)***12.(D)Whichoneofthefollowing
7、functionsisvalid?A)doublefun(intx,inty){z=x+y;returnz;}B)fun(intx,y){intz;returnz;}C)fun(x,y){intx,y;doublez;z=x+y;returnz;}D)doublefun(intx,inty){doublez;z=x+y;returnz;}13.(D)InasourcecodesfileofClanguage,ifavariablecanonlybeusedbyallfunctionswiththefileitself,thestorageclas
8、softhevariableisA)externB)registerC)autoD)static14.(B)TheCprogrammin
