A. logic
B. puzzle
C. cause
D. problem
第1题:
A.Has-arelationshipsshouldneverbeencapsulated.
B.Has-arelationshipsshouldbeimplementedusinginheritance.
C.Has-arelationshipscanbeimplementedusinginstancevariables.
D.Is-arelationshipscanbeimplementedusingtheextendskeyword.
E.Is-arelationshipscanbeimplementedusingtheimplementskeyword.
F.Anarrayoracollectioncanbeusedtoimplementaone-to-manyhas-arelationship.
G.TherelationshipbetweenMovieandActressisanexampleofanis-arelationship.
第2题:
下列语句中错误的是
A.String S[]={"how","are"};
B.byte b=255;
C.String s="one"+"two";
D.int i=2+2000;
第3题:
第4题:
Hurry up! The concert __________ for ten minutes.
A、has begun
B、had begun
C、has been on
D、began
第5题:
A ___ (救生圈) should be located on the gangway.
A.life-jacket
B.life-raft
C.life-buoy
D.life-boat
第6题: