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【单选题】
以下不是算法特性的是
A.
无穷性
B.
零个和多个输入,至少一个输出
C.
确切性
D.
有效性
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【判断题】有研究表明,空气中CO2浓度达到0.04%时,敏感的居民已有所感觉.
A.
正确
B.
错误
【单选题】振动器作用半径 R 一般为( )。
A.
300 ~ 400mm
B.
100 ~ 200mm
C.
50 ~ 100mm
D.
150 ~ 200mm
【简答题】请完成 第五章 功能原理与机械能守恒定律 课后习题 奇数题
【单选题】It can be inferred from the researchers first finding that______.
A.
the experiment did not make sense
B.
volunteers' feelings varied from one to another
C.
researchers found out why musical senses may assess smell
D.
human brains combine multisensory information to make sense
【简答题】制动防抱死装置故障的初步检查包括哪些内容?
【单选题】We can infer from the word 'ideal' in the last paragraph that ______.
A.
researchers' design is too unrealistic
B.
everyone dreams an ideal world they can test
C.
people over 15 receiving tests once a year is just what researchers conceived
D.
it is impossible for everyone over 15 to test once a year
【判断题】梁下部纵筋2φ25+3φ20(-3);5φ25:表示上排纵筋为2φ25和3φ20且3φ20不伸入支座,下排纵筋为5φ25,全部伸入支座
A.
正确
B.
错误
【单选题】Brain researchers have discovered that the formation of new habits can be ______.
A.
predicted
B.
regulated
C.
traced
D.
guided
【简答题】影响短期偿债能力的因素与影响长期偿债能力的因素有何不同?
【单选题】How can researchers in 'sleep laboratories' tell that the animals they are observing are asleep or not?
A.
They see if the animals respond to light and sound.
B.
They do this by observing changes in the animals' brain signals, breathing, heartbeat, and muscle activity.
C.
They see if the animals' eyes are closed.
D.
They can tell this by seeing if the animals lie down or not.
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