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【单选题】
一个跨度为30m的重型机械厂房，桥式吊车起重量为100t，该厂房采用适宜的吊车梁类型为______。A.
非预应力混凝土T形截面
B.
预应力混凝土T形截面
C.
预应力混凝土I形截面
D.
预应力混凝土鱼腹式
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举一反三
【单选题】Why did the man find the job appealing?
A.
He could improve his foreign languages
B.
He could work close to his family.
C.
He could travel overseas frequently.
D.
He could use his previous experiences.
【单选题】As an international star, Mickey______.
A.
knows many foreign languages
B.
plays an important role in cross-cultural communication
C.
has always been the most popular Disney character
D.
has his face changed frequently
【单选题】(13) __________
A.
She could improve her foreign languages.
B.
She could work close to her family.
C.
She could travel overseas frequently.
D.
She could use her previous experiences.
【简答题】选择下列适当词语完成下列句子（每小题1分，共5分） frequently ，schedule ，upset ， trapped ， disaster 小题1:Anne's sister Margot was very __________ when the family had to move. 小题2:Languages ______________ change. 小题3:Now she is...
【简答题】某进程页面访问序列为 2,3,2,2,5,2,4,5,3,2,5,2 且开始执行时内存中没有页面 , 分配给该进程的物理块数是 3 ,采用 LRU 淘汰算法的缺页率是 __________。
【简答题】某进程页面访问序列为4,3,2, 1,4,3,5,4,3,2, 1,5,且开始执行时,内存中没有页面,分配给该进程的物理块数是3,则采用FIFO页面置换算法时缺页率为_________,采用LRU页面置换算法时缺页率为_________。
【单选题】Questions 12 to 15 are based on the conversation you have just heard.
A.
She could improve her foreign languages.
B.
She could work close to her family.
C.
She could travel overseas frequently.
D.
She could use her previous experiences.
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【简答题】某进程页面访问序列为 2,3,2,2,5,2,4,5,3,2,5,2 且开始执行时内存中没有页面 , 分配给该进程的物理块数是 3 ,采用 LRU 淘汰算法的缺页率是 __________。
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