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2.通过模仿、操作、探索,经历通过设计程序框图表达解决问题的过程。在具体问题的解决过程中(如,三元一次方程组求解等问题),理解程序框图的三种基本逻辑结构:顺序、条件分支、循环。

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1.通过对解决具体问题过程与步骤的分析(如,二元一次方程组求解等问题),体会算法的思想,了解算法的含义;

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60. Here ____ a pen, a few pencils and some paper for you.

A. are         B. is            C. was          D. were

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59. Tom is the only one of the students who ____ going to swim this afternoon.

A. is          B. was          C. are           D. were

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58. Many a man ____ the novel.     

A. has read     B. have read      C. is read        D. are read

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57. More than 60% of the students ____ the countryside.  

A. is           B. are           C. is from        D. are from

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56. It is I who ____ going to attend the meeting tomorrow.       

A. is          B. am           C. are           D. be

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55. His family ____ a big one. Now the family ____ watching TV.

A. is, are          B. are, is        C. is, is         D. are, are

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54. She as well as her brother ____ a League member.       

A. are         B. were         C. will          D. is

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53. An iron and steel works, with some satellite factories, ____ to be built here.

A. are         B. were         C. is            D. will

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