A. takes
B. has
C. makes
D. finds
第1题:
已知学生记录描述为: struct student { int no; char name[20],sex; struct { int year,month,day; } birth; }; struct student s; 设变量s中的“生日”是“1984年11月12日”,对“birth”正确赋值的程序段是( )。
A.year=1984;month=11;day=12;
B.s.year=1984;s.month=11;s.day=12;
C.birth.year=1984;birth.month=11;birth.day=12;
D.s.birth.year=1984;s.birth.month=11;s.birth.day=12;
第2题:
A.Memoryrequirementsarehigherforshareddistributiontreethanforsourcedistributiontree
B.CreatesatreefromacentralRPtoalllast-hoprouters
C.Usesarendezvouspoint
D.Anoptimalpathiscreatedbetweeneachsourcerouterandeachlast-hoprouter
E.Place(S,G)entryineachrouter’smulticastroutingtable
F.Place(*,G)entryinarouter’smulticastroutingtotable
第3题:
There are twelve (46) in a year.
The (47) 0f the twelve months are: January, February, March,April,May,June,(48) ,August, (4 9) ,October, November and December.
Each month has (50) days or thirty-one days except(除……之外)February..In a leap year(闰年),February has (51) days.A leap year comes once in four years.
There are 365(52 ) in a year.
There are (53) days in a week. They are Sunday, Monday, Tuesday, Wednes-day, Thursday, Friday and Saturday.
The parts of the day are: morning,(54) ,evening and night.
April,June,September and (55) have thirty days.
All the rest have thirty-one days, except(除……之外)February alone(只、仅).
46.______
第4题:
A.pink-letter
B.white-letter
C.black-letter
D.red-letter
第5题:
A.Memory requirements are higher for shared distribution tree than for source distributiontree.
B.Creates a tree from a central RP to all last-hoprouters.
C.Uses a rendezvous point.
D.An optimal path is created between each source router and each last-hoprouter.
E.Place(S,G)entry in each router’smulticast routing table.
F.Place(*,G)entry in a router’smulticast routing to table.
第6题:
已知学生记录描述如下,设变量s中的“生日”应是“1984年11月11日”,下列对生日的正确赋值方式是()。 struct student{ int no; char name[20]; char set; struct{ int year; int month; int day; } birth; }; struct student s;
A.year=1984;month=11;day=11;
B.birth.year=1984; birth.month=11; birth.day=11
C.s.year=1984;s.month=11;s.day=11
D.s.birth.year=1984;s.birth.month=11; s.birth.day=11;