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【简答题】
求函数z=ln(x+y)在抛物线y 2 =4x上点(1，2)处，沿着这抛物线在该点处偏向x轴正向的切线方向的方向导数．
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参考答案：
举一反三
【单选题】设【图片】为常数，则级数【图片】
A.
绝对收敛
B.
条件收敛
C.
发散
D.
收敛性与 的取值有关
查看完整题目与答案
【简答题】Talking with people is necessary in our daily activities and it is also very important. However, we all have different styles of communicating. Some people seem to be liked by most of the people while...
查看完整题目与答案
【单选题】设【图片】为常数，则级数【图片】
A.
发散
B.
条件收敛
C.
绝对收敛
D.
收敛性与 的取值相关
查看完整题目与答案
【单选题】“bridge out” wouldactually mean “Meet me.” 40 However, it is also hard to keep a code booksecret for long. So codes must be changed frequently.
A.
It is very hard to break a code without the code book.
B.
In any language, some letters are used more than others.
C.
Only people who know the keyword can read the message.
D.
As long as there have been codes, people have tried to break them.
G.
You can hide a message by having the first letters of each word spell it out. F. With a code book, you might write down words that would stand for other words. G. Another way to hide a message is to use symbols to stand for specific letters of the alphabet.F. G.
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【单选题】The job is to me because I have little experience, however, it is also . [     ]
A.
challenging; rewarding
B.
challenged; rewarded
C.
challenging; rewarded
D.
challenged; rewarding
查看完整题目与答案
【单选题】设【图片】为常数, 则级数【图片】
A.
发散
B.
绝对收敛
C.
条件收敛
D.
收敛性与 的取值有关
查看完整题目与答案
【单选题】However, it is also the language used to report financial information about ( nonprofit) organizations...
A.
charitable
B.
profit-hungry
C.
not-for-profit
D.
nonmoral
查看完整题目与答案
【单选题】Quality is ______ counts most.[2008]
A.
which
B.
that
C.
what
D.
where
查看完整题目与答案
【判断题】设【图片】的一个原函数为【图片】，则常数【图片】
A.
正确
B.
错误
查看完整题目与答案
【单选题】( )是危险度评价的第一步骤,属定性评价阶段。
A.
危害鉴定
B.
污染来源鉴定
C.
暴露评价
D.
剂量—反应关系评定
E.
危险度特征分析
查看完整题目与答案
相关题目：
【单选题】设【图片】为常数，则级数【图片】
A.
绝对收敛
B.
条件收敛
C.
发散
D.
收敛性与 的取值有关
查看完整题目与答案
【简答题】Talking with people is necessary in our daily activities and it is also very important. However, we all have different styles of communicating. Some people seem to be liked by most of the people while...
查看完整题目与答案
【单选题】设【图片】为常数，则级数【图片】
A.
发散
B.
条件收敛
C.
绝对收敛
D.
收敛性与 的取值相关
查看完整题目与答案
【单选题】“bridge out” wouldactually mean “Meet me.” 40 However, it is also hard to keep a code booksecret for long. So codes must be changed frequently.
A.
It is very hard to break a code without the code book.
B.
In any language, some letters are used more than others.
C.
Only people who know the keyword can read the message.
D.
As long as there have been codes, people have tried to break them.
G.
You can hide a message by having the first letters of each word spell it out. F. With a code book, you might write down words that would stand for other words. G. Another way to hide a message is to use symbols to stand for specific letters of the alphabet.F. G.
查看完整题目与答案
【单选题】The job is to me because I have little experience, however, it is also . [     ]
A.
challenging; rewarding
B.
challenged; rewarded
C.
challenging; rewarded
D.
challenged; rewarding
查看完整题目与答案
【单选题】设【图片】为常数, 则级数【图片】
A.
发散
B.
绝对收敛
C.
条件收敛
D.
收敛性与 的取值有关
查看完整题目与答案
【单选题】However, it is also the language used to report financial information about ( nonprofit) organizations...
A.
charitable
B.
profit-hungry
C.
not-for-profit
D.
nonmoral
查看完整题目与答案
【单选题】Quality is ______ counts most.[2008]
A.
which
B.
that
C.
what
D.
where
查看完整题目与答案
【判断题】设【图片】的一个原函数为【图片】，则常数【图片】
A.
正确
B.
错误
查看完整题目与答案
【单选题】( )是危险度评价的第一步骤,属定性评价阶段。
A.
危害鉴定
B.
污染来源鉴定
C.
暴露评价
D.
剂量—反应关系评定
E.
危险度特征分析
查看完整题目与答案
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