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二、单词拼写 (10%) 1. In our country, government officials are usually regarded as “s________ of the people”. 2. B ________ dogs seldom bite. 3. Your reading speed is limited if your v________ is not large enough. 4. She smiled to me, with the i ___ that she had seen me. 5. Every student has the right to use the library, that is, every student has a______ to the school library. 6. It’s not polite to i_________ when someone is talking. 7. The procedure is too complicated( 复杂的 ). It needs to be ___________ ( 简化 ) . 8. Everyone’s fingerprints are _________( 独特的 ). 9. Before you begin to work, you may first work out a _______ plan. ( 实际可行的 ) 10. I don’t want to _________ him by shouting at him in front of his friends. ( 使尴尬 )
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【单选题】带头结点的循环单链表head为空的判断条件是（）
A.
head == NULL
B.
head != NULL
C.
head-＞next == head
D.
head-＞next == NULL
【单选题】带有头结点的单循环链表的头指针为head，则该链表为空的判定条件是()。
A.
head= =NULL
B.
head->next= =NULL
C.
head!=NULL
D.
head->next= =head
【单选题】有一个带头结点的循环单链表HEAD,则判断其是否为空链表的条件是
A.
HEAD == NULL
B.
HEAD-〉NEXT==NULL
C.
HEAD->NEXT == HEAD
D.
HEAD!=NULL
【单选题】若带头结点的单循环链表的头指针为head,则判断链表是否为空的条件是( )。
A.
head==NULL
B.
head->next==NULL
C.
head!=NULL
D.
head->next==head
【单选题】带有头结点的单循环链表的头指针为head，则该链表为空的判定条件是()。
A.
head==NUL
B.
head-next==NULL
C.
head!=NULL
D.
head-next==head
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