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【简答题】
Part A Your friend Li Ming has written to invite you to go to his hometown together with him and you are willing to accept his invitation. Write a reply to Li Ming, 1. to express your appreciation and acceptance of his invitation; 2. to ask about his schedule for the trip; 3. to ask about what necessary preparations you need to make. You should write approximately 100 words. Do not sign your name at the end of your letter. Use 'Wang Lin' instead. You do not need to write the address.
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【单选题】一个 n=50 的随机样本,算得样本均值 x=32, 总体标准差为 6 。总体均值 的 95% 的置信区问为 ( )
A.
32±1.66
B.
B32 ± 2.66
C.
32 ± 3.66
D.
32 ± 4.66
【单选题】___________ are good friends and ___________ are in the same class. [ ]
A.
Lucy and I, they
B.
I and Lucy, we
C.
Lucy and I, we
【单选题】Han Mei and Lucy are good friends. They are in ____________.
A.
Class Three
B.
Three Class
C.
Class Third
D.
Third Class
【单选题】1926 年,受迪斯尼动画《从墨水瓶跳出来》启发,万氏兄弟制作了首部具有中国民族特色的动画片名是( ),这个12分钟有情节的短片宣告了我国美术电影的诞生。
A.
《小青鸟》
B.
《小梅的梦》
C.
《大闹画室》
D.
《老笨狗饿肚记》
【单选题】一个n=50的随机样本,算得样本均值为32,总体标准差为6.总体均值u的95%的置信区间为( )。
A.
32±1.66
B.
32±2.66
C.
32±3.66
D.
32±4.66
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