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【判断题】
在有些实际问题中,我们根据实际意义就可以断定函数f(x)确有最大值或最小值,而且一定在其定义区间内取得,此时如果f(x)在其定义区间内只有唯一驻点 ,那么就不必讨论 是否是极值,而直接判定 是最大值或最小值。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】What did the author do with the students found dishonest?
A.
He reported them to the headmaster.
B.
He lectured them hard on honesty.
C.
He had them take notes before lunch.
D.
He helped improve their writing skills.
【单选题】What did the author feel surprised when he began to play eSports?
A.
high speed with which people can control their hands while at the same time keeping such a high level of critical thinking
B.
run faster than a train while driving a minivan
C.
solve a math equation while driving a minivan
D.
evaluate certain situations and keep cool under pressure
【简答题】PICC穿刺首选 静脉。
【单选题】What did the author realize when he re-entered the corporate world?
A.
Making new friends with his workmates was not as easy as he had anticipated.
B.
Cultivating positive interpersonal relationships helped him expel solitary feelings.
C.
Working in the corporate world requires more interpersonal skills than self-employment.
D.
Building close relationships with his colleagues was not as important as he had ejected.
【单选题】What did the author realize when he re-entered the corporate world?
A.
Making new Mends with his workmates was not as easy as he had anticipated.
B.
Cultivating positive interpersonal relationships helped him expel solitary feelings.
C.
Working in the corporate world requires more interpersonal skills than self-employment.
D.
Building close relationships with his colleagues was not as important as he had ejected.
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