231×597+403×769+597×769+231×403= A. 45597B. 100000C. 1000000D. 95769
231×597+403×769+597×769+231×403=
A. 45597
B. 100000
C. 1000000
D. 95769
B. 100000
C. 1000000
D. 95769
参考解析
解析:解题指导: 估算问题。首先,231×597的个位数是7;403×769的个位数是7;597×769的个位数是3;231×403的个位数是3;因此尾数应该是0。答案只可能在BC中选。而231×597>1×100000 。故答案为C。
相关考题:
Youhavebuiltawebapplicationwithtightsecurity.Severaldirectoriesofyourwebappareusedforinternal purposesandyouhaveoverriddenthedefaultservlettosendanHTTP403statuscodeforanyrequestthatmapstooneofthesedirectories.Duringtesting,theQualityAssurancedirectordecidedthattheydidNOTlikeseeingthebareresponsepagegeneratedbyFirefoxandInternetExplorer.Thedirectorrecommendedthatthewebappshouldreturnamoreuser-friendlywebpagethathasthesamelook-and-feelasthe webapppluslinkstothewebapp’ssearchengine.YouhavecreatedthisJSPpageinthe/WEB-INF/jsps/error403.jspfile.YoudoNOTwanttoalterthecomplexlogicofthedefaultservlet.HowcanyoudeclarethatthewebcontainermustsendthisJSPpagewhenevera403statusisgenerated?()
根据道岔有害空间核对病害里程时,有害空间的图纸里程为K231+187,现场实际里程为K231+201,在其附近发生超限病害,图纸里程为K231+423,其现场里程应为()。A、K231+201B、K231+423C、K231+409D、K231+437
单选题根据道岔有害空间核对病害里程时,有害空间的图纸里程为K231+187,现场实际里程为K231+201,在其附近发生超限病害,图纸里程为K231+423,其现场里程应为()。AK231+201BK231+423CK231+409DK231+437