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【判断题】
电动机分为直流电动机、交流同步电动机和交流异步电动机。( )A.
正确
B.
错误
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【单选题】以下程序输出的结果是( )。 def person(name, age, **kw): print('name:', name, 'age:', age, 'other:', kw) person('Jack ', 35, city='Beijing')
A.
name: Jack age: 35 other: {'city': 'Beijing'}
B.
name: Jack age: 35 other: city='Beijing'
C.
name: Jack age: 35 other: ('city': 'Beijing')
D.
name: Jack age: 35 other: ('city', 'Beijing')
【简答题】已知 为常数， ，在区间 上的最大值是2，则
【简答题】已知 其中 为常数，若 ，则 =
【单选题】'What's in a name? That which we call a rose By any other name would smell as sweet So Romeo would, were he not Romeo called' (Romeo and Juliet, Act 2, Scene 2,43-45) To what characteristics of langua...
A.
Creativity.
B.
Productivity.
C.
Duality.
D.
Arbitrariness.
【简答题】已知 为常数，函数 在区间 上的最大值为2，则 ＝ .
【简答题】已知 ，其中 、 为常数，且 ，若 为常数，则 的值为 .
【单选题】Chinese people place a person’s family name before the given name, _______ people in many other countries do the opposite.
A.
but
B.
and
C.
however
D.
while
【单选题】The difference between the name of a service company and those of other companies is that
A.
the products are tangible but services are not.
B.
the name of a service company is a company's image but the names of other companies are not.
C.
customers are loyal to brand names of products but are not to names of services.
D.
brand names can help service companies to expand their business but cannot help other companies in this aspect.
【单选题】To other birds, cuckoos have a bad name because______.
A.
they eat other birds' babies
B.
they get paid without work
C.
they expel other birds' chicks
D.
they lay eggs in their own nests
【简答题】已知 为常数，若 则求 的值.
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