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【单选题】
脉管系统的组成包括A.
心、静脉、毛细血管和动脉
B.
毛细淋巴管、淋巴干、淋巴导管
C.
静脉系统和淋巴系统
D.
心血管系统和淋巴系统
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举一反三
【简答题】请听一段对话，回答第1至第2小题 1. Where are the two speakers? [ ] A. At the post office. B. In the library. C. At the shopping center. 2. Which book does the boy want? [ ] A. Jane Eyre. B. Harry Porter. C. ...
【单选题】光学经纬仪既可以水平转动,望远镜也可以竖直转动,所以( )。
A.
它只有两个制动螺旋。
B.
它只有两个微动螺旋
C.
它有一对水平制动螺旋和水平微动螺旋，还有一堆竖直制动螺旋和竖直微动螺旋
D.
以上都不正确
【简答题】听下面一段材料，回答第1-4题。 1. Where does the conversation take place? A. At the party. B. At the library. C. At Professor Blake's. 2. What is the probable relationship between the two speakers? A. Fellow studen...
【简答题】已知完全二叉树T的第5层只有7个结点，则该树共有______个叶子结点。
【单选题】The two major political parties in Britain are the Conservative Party and ______.
A.
the Liberal Party
B.
the Labor Party
C.
the Republican Party
D.
the Democratic Party
【简答题】已知完全二叉树 T 的第 5 层只有 7 个结点,则该树共有 个叶子结点。
【单选题】The system has been designed to give students quick and easy_____to the digital resources of the library.
A.
access
B.
passage
C.
way
D.
approach
【单选题】Which of the following is NOT one of the three major political parties in Canada?
A.
The Liberal Party
B.
The Conservatives
C.
The New Democratic Party
D.
The Labour Party
【简答题】A．It takes time to collect the useful information. B．One can only read books in the library. C．All books are difficult to understand. D．One has to line up to borrow books.
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