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【单选题】
以下关于虚电路交换方式特点的描述中,错误的是A.
虚电路方式在分组发送前,在发送接收方需要建立一条逻辑连接的虚电路
B.
虚电路工作过程分为虚电路建立阶段、数据传输阶段与虚电路拆除阶段
C.
通过虚电路传送的分组需要有目的节点的地址
D.
每个节点可以同时在多个节点之间建立虚电路
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举一反三
【单选题】晶间腐蚀会对结构件造成怎样的损害?
A.
严重降低材料的机械性能，而外表并无变化
B.
对结构件的损伤不大
C.
不会导致构件发生突然破坏
D.
严重降低材料的机械性能，发生破坏前有明显的预兆
【简答题】My father was Chief engineer of a merchant ship, which was sunk in Word War II. The book Night of the U-boats told the story. Memories In September, 1940, my mother, sister and I went to Swansea, wher...
【简答题】Barack Obama, a black man, is the president of the United States now. He was born on August 4th, 1961, in Hawaii and has lived in many places. His mother was from Kansas and his father was from Kenya....
【单选题】对公有制经济的主体地位的理解错误的是( )
A.
公有资产在社会总资产中占优势
B.
国有经济控制国民经济命脉
C.
国有经济对经济发展起主导作用
D.
公有制企业在数量上和质量上占优势
【单选题】Barak Obama, a black man, is the president of the United States now. He was born on August 4 th , 1961, in Hawaii and has lived in many places. His mother was from Kansas and his father was from Kenya...
A.
． In Kansas.
B.
． In Hawaii.
C.
． In Kenya.
D.
． In Massachusetts.
【单选题】生产资料公有制是社会主义经济的制度的基础。下面关于公有制经济的主体地位的理解，错误的是（）
A.
公有资产在社会总资产中占优势
B.
国有经济控制国民经济命脉
C.
国有经济对经济发展起主导作用
D.
公有制企业在数量上和质量上占优势
【单选题】公有制经济的主体地位的理解,错误的是( )
A.
公有制企业在数量上和质量上占优势
B.
国有经济控制国民经济命脉
C.
国有经济对经济发展起主导作用
D.
公有制企业事关国计民生的重要行业。
【单选题】Yesterday we went to visit the farm ____ my father used to work for nearly ten years.
A.
in which
B.
that
C.
where
D.
which
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