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【单选题】
--What do you think of his suggestion that safety standards ______ ? --It is well worth consideration in my opinion.
A.
will improved
B.
should improve
C.
be improved
D.
will be improved
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参考答案:
举一反三
【简答题】(本小题满分14分) 设 是定义在 上的函数,用分点 将区间 任意划分成 个小区间,如果存在一个常数 ,使得和式 ( )恒成立,则称 为 上的有界变差函数. (1)函数 在 上是否为有界变差函数?请说明理由; (2)设函数 是 上的单调递减函数,证明: 为 上的有界变差函数; (3)若定义在 上的函数 满足:存在常数 ,使得对于任意的 、 时, .证明: 为 上的有界变差函数.
【单选题】下列选项中不属于 Python 特点的是 _________
A.
面向对象
B.
运行效率高
C.
高可移植性
D.
免费和开源
【单选题】中机型船的特点是:1、空载吃水差较小;2、重载吃水差较大;3、货舱舱容浪费较大
A.
①、②
B.
②、③
C.
①、③
D.
①、②、③
【单选题】下列选项中,不属于 Python特点的是
A.
面向对象
B.
运行效率高
C.
可移植性
D.
免费和开源
【单选题】From the last paragraph, we can learn that multitaskers usually________.
A.
drive very skillfully
B.
go in for different tasks
C.
fail to react quickly to potential dangers
D.
refuse to explain the reasons for their behavior
【单选题】From the passage we can learn that .
A.
society has been influenced by science fiction more in direct ways
B.
communications and transportation are usually impacted indirectly by science fiction
C.
science fiction has no direct negative influence upon society
D.
science fiction has influenced society both in technological and cultural areas
【判断题】Usually we can learn from shipping marks the destination and weight of the goods in transit.
A.
正确
B.
错误
【单选题】We can learn from Paragraph 3 that deep venous thrombosis usually happens because _____.
A.
the economy class is not spacious enough
B.
there are too many economy-class passengers
C.
passengers are not allowed to walk during the flight
D.
the low pressure in the cabin prevents blood flowing smoothly
【多选题】中机型船的特点是:
A.
空载吃水差较小
B.
重载吃水差较大
C.
货舱舱容浪费较大
【单选题】中机型船的特点是( )I.空载吃水差较小;II.重载吃水差较大;III.货舱舱容浪费较大
A.
I.II
B.
II.III
C.
I.III
D.
I.II.III
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