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【多选题】
下列选项中,表述矛盾同一性思想的有( )
A.
高下相倾,长短相形
B.
物极必反,相反相成
C.
祸福相因,难易相成
D.
绳锯木断,水滴石穿
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参考答案：
举一反三
【判断题】若函数f(x)在(a,b)内单调递增,且在(a,b)内可导,则必有f’(x)>0.
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the passage, which of the following statements is not true?
A.
Although it is easy to travel around the world now, real contact is impossible as a result of our inability to communicate.
B.
To overcome the language barrier, people all over the world welcome one of the major languages to be universal.
C.
People are afraid of losing their own languages as a result of the domination of major foreign languages.
D.
There are numerous misunderstandings in people's contacts.
查看完整题目与答案
【单选题】患者，男性，27岁，今早不慎被车撞倒，头部受到创伤，意识丧失，20分钟后清醒，自觉头痛、头晕，对受伤当时的情况没有记忆，你认为该患者最有可能发生了（）
A.
脑挫伤
B.
脑震荡
C.
脑水肿
D.
脑出血
查看完整题目与答案
【单选题】Please read the following paragaraph, and find out How the writer develops the paragraph? The internet has been offering a tremendous assistance to its users in terms of communication. To start with, ...
A.
with comparison and contrast
B.
with a combination of examples, comparison and contrast and cause-and-effect pattern
C.
with examples
D.
with cause-and-effect pattern
查看完整题目与答案
【判断题】若函数在 f (x) 在 ( a, b ) 内具有二阶导数,且 f’(x)0 , 则曲线 y= f( x ) 在 ( a, b) 内单调减少且是向上凹.
A.
正确
B.
错误
查看完整题目与答案
【简答题】短文填词。 In the past hundred years, there have been frequent natural disasters, ______ as floods, droughts, earthquakes. The disasters have killed m______ of people, destroyed countless homes, and wiped ...
查看完整题目与答案
【单选题】若f(x)在x0的某个邻域内可导,且f’(x0)=1/2,则当Δx→0时,在x0处,dy与Δx的关系是( ).
A.
比Δx高阶的无穷小量
B.
比Δx低阶的无穷小量
C.
与Δx同阶的无穷小量
D.
与Δx等价的无穷小量
查看完整题目与答案
【单选题】男性患者,25岁,头部受伤,意识丧失,25分钟后清醒。对伤前近时事情不能记忆,仍有头痛,未查出神经系统的阳性体征,应诊断为
A.
脑水肿
B.
脑缺血
C.
脑震荡
D.
颅内血肿
E.
脑挫裂伤
查看完整题目与答案
【单选题】若f（x）在（a，b）内满足f’（x）0，则曲线y=f（x）在（a，b）内是（）．
A.
单调上升且是凹的
B.
单调下降且是凹的
C.
单调上升且是凸的
D.
单调下降且是凸的
查看完整题目与答案
【单选题】若a，b是方程f（x）=0的两个相异的实根，f（x）在［a，b］上连续，且在（a，b）内可导，则方程f’（x）=0在（a，b）内（）．
A.
只有一个根
B.
至少有一个根
C.
没有根
D.
以上结论都不对
查看完整题目与答案
相关题目：
【判断题】若函数f(x)在(a,b)内单调递增,且在(a,b)内可导,则必有f’(x)>0.
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the passage, which of the following statements is not true?
A.
Although it is easy to travel around the world now, real contact is impossible as a result of our inability to communicate.
B.
To overcome the language barrier, people all over the world welcome one of the major languages to be universal.
C.
People are afraid of losing their own languages as a result of the domination of major foreign languages.
D.
There are numerous misunderstandings in people's contacts.
查看完整题目与答案
【单选题】患者，男性，27岁，今早不慎被车撞倒，头部受到创伤，意识丧失，20分钟后清醒，自觉头痛、头晕，对受伤当时的情况没有记忆，你认为该患者最有可能发生了（）
A.
脑挫伤
B.
脑震荡
C.
脑水肿
D.
脑出血
查看完整题目与答案
【单选题】Please read the following paragaraph, and find out How the writer develops the paragraph? The internet has been offering a tremendous assistance to its users in terms of communication. To start with, ...
A.
with comparison and contrast
B.
with a combination of examples, comparison and contrast and cause-and-effect pattern
C.
with examples
D.
with cause-and-effect pattern
查看完整题目与答案
【判断题】若函数在 f (x) 在 ( a, b ) 内具有二阶导数,且 f’(x)0 , 则曲线 y= f( x ) 在 ( a, b) 内单调减少且是向上凹.
A.
正确
B.
错误
查看完整题目与答案
【简答题】短文填词。 In the past hundred years, there have been frequent natural disasters, ______ as floods, droughts, earthquakes. The disasters have killed m______ of people, destroyed countless homes, and wiped ...
查看完整题目与答案
【单选题】若f(x)在x0的某个邻域内可导,且f’(x0)=1/2,则当Δx→0时,在x0处,dy与Δx的关系是( ).
A.
比Δx高阶的无穷小量
B.
比Δx低阶的无穷小量
C.
与Δx同阶的无穷小量
D.
与Δx等价的无穷小量
查看完整题目与答案
【单选题】男性患者,25岁,头部受伤,意识丧失,25分钟后清醒。对伤前近时事情不能记忆,仍有头痛,未查出神经系统的阳性体征,应诊断为
A.
脑水肿
B.
脑缺血
C.
脑震荡
D.
颅内血肿
E.
脑挫裂伤
查看完整题目与答案
【单选题】若f（x）在（a，b）内满足f’（x）0，则曲线y=f（x）在（a，b）内是（）．
A.
单调上升且是凹的
B.
单调下降且是凹的
C.
单调上升且是凸的
D.
单调下降且是凸的
查看完整题目与答案
【单选题】若a，b是方程f（x）=0的两个相异的实根，f（x）在［a，b］上连续，且在（a，b）内可导，则方程f’（x）=0在（a，b）内（）．
A.
只有一个根
B.
至少有一个根
C.
没有根
D.
以上结论都不对
查看完整题目与答案
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