Last night Li Gang kept doing the maths exercises ________ after ________.

第1题

The word "gang" in the reading means______A. a place for boys to play gamesB. a group of young peopleC. a school bus for children to and from schoolD. the teacher's office

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第2题

查询选修了课程号为“MATHS”的学生的姓名和年龄，若用下列SQL的SELECT语句表达时，错误的是（ ）。A) SELECT SNAME,AGE FROM S WHERE S. S# =(SELECT SC． S# FROM SC WHEREc.c# ='MATHS ')B ) SELECT SNAME, AGE FROM S WHERE S. S# =(SELECT SC． S# FROM SC WHERESC． C# =' MATHS ')C) SELECT SNAME, AGE FROM S, SC WHERE S. S# =SC． S# AND SC． C# ='MATHS'ORDER BY S. S#D)SELECT SNAME, AGE FROM S, SC WHERE S. S# =SC． S# AND SC． C# ='MATHS'

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第3题

A、healthy; exerciseB、health; exerciseC、healthy; exercisesD、health; exercises

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第4题

已知last指向单向简单链表的尾结点，将s所指结点加在表尾，不正确的操作是____。A．last-＞next=s,last=s,last-＞next=NULL;B．last-＞next=s,s-＞next=NULL,last=s;C．s-＞next=NULL, last-＞next=s, s=last;D．s-＞next=NULL, last-＞next=s,last=s;

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第5题

7、已知last指向单向简单链表的尾结点，将s所指结点加在表尾，正确的操作是____。A．s-＞next=s,last=s,last-＞next=NULL;B．last-＞next=s,s-＞next=NULL,last=s;C．s-＞next=NULL, last-＞next=s, s=last;D．s-＞next=last, last-＞next=NULL,last=s;

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第6题

已知last指向单向简单链表的尾结点，将s所指结点插入在表尾，正确的操作是____。A．s-＞next=s,last=s,last-＞next=NULL;B．last-＞next=s,s-＞next=NULL,last=s;C．s-＞next=NULL, last-＞next=s, s=last;D．s-＞next=last, last-＞next=NULL,last=s;

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第7题

已知last指向单向简单链表的尾结点，将s所指结点加在表尾，正确的操作是____。A．s-＞next=s,last=s,last-＞next=NULL;B．last-＞next=s,s-＞next=NULL,last=s;C．s-＞next=NULL, last-＞next=s, s=last;D．s-＞next=last, last-＞next=NULL,last=s;

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