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【简答题】
为什么溶解态Zn在北太平洋深层水中的浓度高于北大西洋深层水,而溶解态Al则相反。
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参考答案:
举一反三
【简答题】The author compared the car to the prison because( )
【判断题】The author compared our bodies to clocks to show the precise accuracy of our system.
A.
正确
B.
错误
【单选题】含有亲切、喜爱感情色彩的是___
A.
雪人儿
B.
脸蛋儿
【单选题】对于低氢型的碱性焊条,重复烘干的次数不宜超过 ( ) 。 A 、 B 、四次 C D 、三次
A.
三次
B.
四次
C.
五次
D.
六次
【单选题】The author compared the supermarket manager to ______.
A.
a military leader.
B.
a school inspector
C.
traffic supervisor
D.
an orchestra conductor
【单选题】用按时间抽取 FFT 计算 N 点 DFT 所需的复数乘法次数与 ( ) 成正比
A.
N
B.
N 2
C.
N 3
D.
Nlog 2 N
【单选题】The author compared the Beowulf character to Hercules because
A.
they are both examples of the ideal hero
B.
their adventures with a dragon are very similar
C.
the speeches that they make are inspiring
D.
they lived at about the same time
【多选题】缝制车间布置的原则包含
A.
物料应单向流动,避免交叉迂回现象
B.
尽可能有效地利用车间空间,使车间的利用率达到最大
C.
使物料的运送时间和流动路线最短或降至最低限度,以提高生产效率
D.
注意采光和照明的要求,以保证机台工作面的采光均匀
【单选题】The author compared Trobriand Islanders and the Yanomani to imply that ______.
A.
they were in a regional exchange network called the kula ring
B.
they were both manufacturing handcrafts
C.
they were located where raw materials were available
D.
their specialization had much to do with social and political environment
【单选题】用按时间抽取FFT计算32点DFT所需的复数乘法次数为( )
A.
32
B.
64
C.
80
D.
1024
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