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【简答题】
下列有关极值的命题中,正确的是 A、 若 在 处有 ,则 在 必取得极值 B、 极大值一定大于极小值 C、 若可导函数 在 处取得极值,则必有 D、 极大值就是最大值
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【判断题】本征半导体的导电性能比杂质半导体好。
A.
正确
B.
错误
【简答题】Q1: What is the news report mainly about? 2: What diseases can coffee pr according to the students? 3: what happened when people was celebrating New Year's Eve? 4. What do we learn about the hote...
【简答题】Beijing will create 100 smoke-free primary and middle schools as part of a China-UN program aimed at promoting health education and healthy behavior for the country’s 230 million primary and middle sc...
【单选题】China is growing stronger and stronger, Chinese is taught in more and more countries. [     ]
A.
If
B.
Unless
C.
As
D.
Although
【单选题】It was exciting news _______ a student from China won a UN prize days ago.
A.
what
B.
that
C.
while
D.
but
【单选题】钓鱼岛是属于________?   ________ 成功地举办了2012年奥运会?
A.
Japan,the USA   
B.
China,the UK   
C.
China,UN
【单选题】China is a ____ member of the UN Security Council (联合国安 理会). [      ]
A.
forever
B.
long-lasting
C.
usual
D.
permanent
【简答题】Food is very important. Everyone needs to 1 well if he or she wants to have a srong body. Our minds also need a kind of food. This kind of food is 2 . We begin to get knowledge even 3 we ae very young...
【单选题】社会主义市场经济体制是社会主义制度与市场经济的结合。这个结合既体现了社会主义的制度特征,又具有市场经济的一般特征。社会主义市场经济体制体现市场经济…一般特征的主要表现是( )
A.
在资源配置上,以市场为手段、发挥市场的决定性作用
B.
在所有制结构上,以公有制为主体、多种所有制经济共同发展
C.
在宏观调控上,以实现最广大劳动人民利益为出发点和归宿
D.
在分配制度上,以按劳分配为主体、多种分配方式并存
【单选题】suerte, Juan consiguió un pasaje para China.
A.
Para
B.
Por
C.
De
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