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【单选题】
未经正式发表的原始文献统称为什么?如书信、手稿、记录、草稿等A.
零次文献
B.
一次文献
C.
二次文献
D.
三次文献
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举一反三
【单选题】—Why do you hate(讨厌) math? —Because it's________A． interesting B． relaxing C． exci
A.
3． —Why do you hate(讨厌) math? —Because it's________ A． interesting
B.
relaxing
C.
exciting
D.
difficult
【简答题】编写Python程序,按下列要求完成计算,结果保留两位小数: (1)半径为2.11的圆球的体积。 (2)外圆半径为16.2,内圆半径为9.4的圆环的面积。 (3)底面半径为66,高为24.2的圆柱体的体积和表面积。
【单选题】The author thinks that this year's celebration is inadequate and even halfhearted because
A.
no Lincoln statue will he unveiled.
B.
no memorial coins will be issued.
C.
no similar appreciation of Lincoln will be seen.
D.
no activities can be compared to those in 1909.
【判断题】The author thinks he has covered most of the important study techniques in this article.
A.
正确
B.
错误
【简答题】蛔虫检查最常用的方法是 [填空(1)]A. 生理盐水直接涂片法
【判断题】The author thinks that the letters that he gets should be in perfect English.
A.
正确
B.
错误
【判断题】The author thinks he is brave and strong enough to face the deep and solemn scenes in the abbey.
A.
正确
B.
错误
【简答题】编写电子杂志代码。
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