辽宁专升本数学真题（2022年）
一、选择题
1、已知函数f(x)2x^3-3x^24x-1，求f(1)的值。
A、0
B、1
C、2
D、3
2、已知三角形ABC的三边长分别为a3,b4,c5，求角A的正弦值。
A、0、6
B、0、8
C、0、9
D、1、0
3、已知差数列的前三项分别为a12,a25,a38，求该差数列的公差。
A、1
B、2
C、3
D、4
二、填空题
4、已知函数g(x)x^22x1，求g(-3)的值。
5、已知圆的半径为7，圆心坐标为(3,4)，求圆的方程。
6、已知向量a(3,4)，向量b(-2,1)，求向量a与向量b的数量积。
三、解答题
7、已知函数h(x)x^4-4x^36x^2-4x1，求h(x)的极值点。
8、已知一个差数列的前五项和为50，公差为2，求该差数列的前三项。
辽宁专升本英语真题及答案（2022年）
一、选择题
1、Whatisthemeaningofthewordubiquitous？
A、Notcommonlyseenorfound
B、Existingorbeingeverywhereatthesametime
C、Occurringonlyincertainareasorsituations
D、Rareorunusual
2、Whichsentenceiswritteninthepassivevoice？
A、Theteacherwillgivethestudentsatestnextweek、
B、Thestudentswillgivetheteacheragifttomorrow、
C、Atestwillbegiventothestudentsnextweek、
D、Theteacherhasgiventhestudentsalotofhomework、
3、Whichsentenceusesthecorrectpreposition？
A、Sheisinterestedinlearningabouthistory、
B、Sheisinterestedonlearningabouthistory、
C、Sheisinterestedatlearningabouthistory、
D、Sheisinterestedforlearningabouthistory、
二、完形填空
Readthefollowingpassageandfillintheblankswiththeappropriatewords、
Passage:
TheInternethas(4)ourlivesinmanyways、Ithasmadeitpossibleforusto(5)informationinstantlyand(6)withpeoplefromallovertheworld、However,therearealsosomenegative(7)tothistechnology、Oneofthebiggestconcernsis(8)privacy、Manypeopleworrythattheirpersonalinformationis(9)andbeingusedfor(10)purposes、
4、A、changed
B、improved
C、destroyed
D、created
5、A、access
B、share
C、delete
D、copy
6、A、communicate
B、argue
C、compete
D、compare
7、A、benefits
B、consequences
C、requirements
D、conditions
8、A、onlinesecurity
B、dataprotection
C、privacy
D、internetaddiction
9、A、stolen
B、lost
C、forgotten
D、damaged
10、A、commercial
B、educational
C、political
D、social
三、阅读理解
Readthefollowingpassageandanswerthequestions、
Passage:
TheGreatBarrierReefistheworld'slargestcoralreefsystem,locatedoffthecoastofAustralia、Itiscomposedofmorethan2,900individualreefsand900islands,stretchingover2,300kilometers、TheGreatBarrierReefishometoadiverserangeofmarinelife,includingmanyspeciesoffish,mollusks,andcoral、Itisalsoapopulardestinationfortourists,whocanenjoyactivitiessuchassnorkelingandscubadiving、
TheGreatBarrierReeffacesseveralthreats,includingclimatechange,pollution,andhumanactivities、Risingseatemperaturescausedbyclimatechangecanleadtocoralbleaching,whichoccurswhencoralsexpelthealgaethatliveintheirtissues、Thiscancausethecoraltodieifthetemperaturesdonotreturntonormal、Pollutionfromland-basedsources,suchasagricultureandurbanrunoff
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