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Task5 Directions:ThereisapieceofVisitorsAdvicebelow.Afterreadingit,youshouldgivebriefanswerstothe5questions (No.56toNo.60)thatfollow. Theanswers(innotmorethan3words)shouldbewrittenafterthecorrespondingnumbersontheAnswerSheet. Wehopethatbyobservingthefollowingpointsyouwillenjoyyourvisitto ChristChurchwithoutdisturbingthelifeofthecollege. *PleaseobeyallnoticesanddonotentertheareasmarkedPrivate. *Pleasedonotenteranycollegemoms. *Pleaseavoidleavinglitter(杂物);picnickingwithinthecollegeisnotpermitted. *Pleasedonotsmoke. *Pleasedonotgathersoastoobstruct(阻塞)pathsorpassages,particularlyintheHall. *Pleasebeasquietaspossible,rememberingthatthisisacollegewherepeopleareworking. *Intheeventofafireorotherdanger,orifyouhearafirealarmorwarning,please leavethebuildingwithoutdelay.Atalltimespleasefollowtheadviceofthe Custodians(保安人员)whoareheretohelpyou. *Closedcircuittelevisionsurveillance(监视)isinoperation.Imagesarebeing recordedforpurposesofcrimepreventionandpublicsafety. *ThankyouforvisitingChristChurch.Ifyouhaveanycommentspleasewriteto: TheSteward,ChristChurch,OxfordOX11DP 56.Whatisthenameoftheplaceopentotourists? It’s
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【单选题】24以下代码将显示什么? def f1(x = 1,y = 2): x = x + y y + = 1 print(x,y) f1(2,1)
A.
1 3
B.
2 3
C.
程序存在运行时错误,因为未定义x和y。
D.
3 2
E.
3 3
【单选题】以下代码将显示什么? x = 2 def f1(): global x x = x + 2 print(x) f1() print(x)
A.
1 4
B.
4 1
C.
程序存在运行时错误,因为未定义x。
D.
1 1
E.
4 4
【单选题】由理想运放组成的放大电路如图示,为了得到 20dB 电压增益, R 的值应该取 ______ 。
A.
10 Ω
B.
100 Ω
C.
10k Ω
D.
100 k Ω
【单选题】要使单选框默认状态为被选中,下列正确的是
A.
蓝桥
B.
蓝桥
C.
蓝桥
D.
蓝桥
【单选题】以下代码将显示什么? x = 1 def f1(): x = x * 2 print(x) f1() print(x)
A.
1 3
B.
2 1
C.
程序存在运行时错误,因为未定义x。
D.
1 1
E.
2 2
【单选题】以下代码将显示什么? x = 3 def f1(): global x x = x + 2 print(x) f1() print(x)
A.
3 5
B.
5 3
C.
程序存在运行时错误,因为未定义x。
D.
3 3
E.
5 5
【单选题】23以下代码将显示什么? def f1(x = 1,y = 2): x = x + y y + = 1 print(x,y) f1()
A.
1 3
B.
3 1
C.
程序存在运行时错误,因为未定义x和y。
D.
1 1
E.
3 3
【单选题】以下哪个选项属于物的不安全现象( )。
A.
使用的电气设备类别不符合要求
B.
未按规定对安全用具定期进行绝缘检测和试验
C.
临时线路绝缘不好,线径与负荷不匹配
【单选题】19以下代码将显示什么? x = 1 def f1(): y = x + 2 print(y) f1() print(x)
A.
1 3
B.
3 1
C.
The program has a runtime error because x is not defined.
D.
1 1
E.
3 3
【单选题】22以下代码将显示什么? x = 1 def f1(): global x x = x + 2 print(x) f1() print(x)
A.
1 3
B.
3 1
C.
程序存在运行时错误,因为未定义x。
D.
1 1
E.
3 3
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