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【单选题】
用来记数的符号叫“数字”,世界各大文明都曾创造过“数字”,有的现代已不再使用,有的只用于特定的场合。下图钟表盘面上表示时间的数字,使用的是( )A.
希腊数字
B.
罗马数字
C.
阿拉伯数字
D.
巴比伦数字
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举一反三
【简答题】计算 ,其中c为圆周
【单选题】The more exercise you do, the _______ you will be.
A.
weaker
B.
healthier
C.
luckier
D.
worse
【简答题】Use the words you wrote in exercise 2 to complete the sentences .You will not need all of them.
【简答题】计算下列曲线积分： (1)∫ C (x+y)ds，其中C是以a为半径、圆心在原点的右半圆周； (2) ，其中C为圆周x 2 +y 2 =ax
【简答题】Exercise 2 Directions: You will hear eight short conversations. After each conversation a question will be asked. Answer the question. Both the conversation and question will be read only once.
【简答题】2. The more exercise you do, the _______
you will be. (5.0分)A. weaker B. healthier C. luckier D. worse
【简答题】试计算积分 ∫C(｜z｜—ezsin z)dz 之值，其中C为圆周｜z｜=a＞0．
【简答题】Exercise
2: Directions: you will hear eight short conversations. After each
conversation, a question will be asked. Answer the questions. 1.
How much are two bags?
【简答题】求证下列不等式： (1) 为连结点一i到i的直线段． (2)｜∫eeizdz｜＜π，其中C为圆周｜z｜=R的上半圆周从R到一R．
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【简答题】Use the words you wrote in exercise 2 to complete the sentences .You will not need all of them.
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