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【单选题】
．已知双曲线的焦点 、 在 轴上,A为双曲线上一点, 轴, ,则双曲线的离心率为（ ）A.
B.
C.
D.
2
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举一反三
【简答题】布置作业:习题集 1. P2 :尺寸注法练习,全部; 2. P3 :几何作图: T3 , 4 , 5 ; 3. P4 :绘图练习:按题目要求,规范地完成几何图形 1 或 2 绘制(学生学号为单数的做几何图形 1 ,双数的做几何图形 2 的练习)
【简答题】(fortunate) ______ , he failed to pass the examination.
【简答题】阅读文章第五、六段,完成下列任务: 1) What is the attitude towards Chinese economy? 2) What makes the author think there is no serious difficulties to the economy? 3) Why does the author think the manufacturing plant...
【单选题】Which of the following terms is defined in the passage?
A.
resonator (line 2)
B.
solo (line 7)
C.
left-hand technique (line 25)
D.
fingering patterns (lines 25-26)
【单选题】Which line of the call number tells you what section of the library the book lies in?
A.
The first line.
B.
The second line.
C.
The third line.
D.
The last line.
【单选题】Which word of the following can replace 'aught'(Line 5, Para. 7)?
A.
Anything.
B.
Masterpiece.
C.
Artistic works.
D.
Product.
【简答题】i . Which format of Business English Letters do you know? ii . Translation 1. Letter Head 2. Reference Number 3. Date 4. Inside Address 5. Attention Line 6. Salutation 7. Subject 8. Letter Body 9. Com...
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