He saw his friends ________ at the airport last Sunday.
A、A. through
B、off
C、leave
D、goodbye
第1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;
第2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;
第3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;
第4题:
第5题:
第6题:
第7题:
You are signing on a deck officer,who will be designated as one of the GMDSS operators,before sailing foreign.Which statement is TRUE ________.
A.He/she must have an STCW certificate endorsed as“Valid for Service on Vessels Operating in the GMDSS System”
B.He/she must present either an FCC-issued license or a Coast Guard-issued license
C.You must consult the“List of Qualifications”on the reverse of his/her FCC-issued license
D.His/her Merchant Mariners Document must have an added endorsement as “Radio Electronics Officer”
第8题:
A、his’
B、his
C、he’s
D、he
第9题:
A.left
B.leaving
C.leave
D.leaved