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【判断题】
优选法的难点在于有时面对数种思路，难以取舍，二者不能兼得，必须舍其一，得其一。
A.
正确
B.
错误
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【判断题】扩散系数的单位和动量扩散系数及热扩散系数的单位相同。
A.
正确
B.
错误
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【判断题】质扩散系数、热扩散系数和动量扩散系数具有相同的单位。
A.
正确
B.
错误
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【单选题】常用的通量测定方法中，（）强调根据乱流扩散理论，通过单位面积的任意动量或标量的通量密度是其浓度梯度与扩散系数的函数。
A.
波文比-能量平衡法
B.
空气动力学法
C.
涡度相关法
D.
感热密度分析法
查看完整题目与答案
【多选题】(4)组织层次的副作用包括()
A.
层次越多，费用越高
B.
层次越多，高层管理越繁忙
C.
层次越多，计划控制越复杂
D.
层次越多，沟通的难度和复杂性越大
查看完整题目与答案
【单选题】According to the passage, which of the following statements is TRUE?
A.
Buy Nothing Day has become popular in the United States.
B.
Restaurants have a tradition of donating food on holidays.
C.
Girl shops are expected to be closed on Buy Nothing Day.
D.
Children like the idea of Buy Nothing Day best.
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【单选题】Ad valorem tariffs are collected as
A.
fixed amounts of money per unit traded.
B.
a percentage of the price of the product.
C.
a percentage of the quantity of imports.
D.
All of the above.
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【单选题】在教学过程中，教师为了让学生掌握知识的本质意义，需要变换知识的呈现方式，其中本质属性保持恒在，而非本质属性可有可无，这在心理学中称为（ ）。
A.
变式
B.
比较
C.
概括
D.
抽象
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【单选题】Read the paragraph below. Find the topic sentence:a) Learning a second language can provide a deeper understanding a foreign culture. b) Social habits that may not make sense to most outsiders might s...
A.
Learning a second language can provide a deeper understanding a foreign culture.
B.
Social habits that may not make sense to most outsiders might start to make more sense after a few vocabulary lessons.
C.
For example, I always wondered why my Dutch cousins rarely said “you’re welcome” after I said “thank you”.
D.
My cousin can speak English but sometimes makes mistakes.
E.
At first I thought he was being rude, but when I learned more about his language I realized that they don’t use “you’re welcome” the same way we do: in response to “thank you”.
F.
They actually say something that translates to “if you please” when they offer you something.
G.
This is one of the first things I learned about Dutch culture when I started to learn their language and it gave me a different perspective on the roles of the host and guest, since in Dutch the onus to be polite is on the host, and not the guest as it seems to be in English.
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【单选题】热扩散系数的单位是
A.
W/m ℃
B.
W/m2 ℃
C.
m2/s
D.
m/s
查看完整题目与答案
【简答题】写出下列物理量的单位(无单位的必须写“无”) : 热导率 热扩散系数
查看完整题目与答案
相关题目：
【判断题】扩散系数的单位和动量扩散系数及热扩散系数的单位相同。
A.
正确
B.
错误
查看完整题目与答案
【判断题】质扩散系数、热扩散系数和动量扩散系数具有相同的单位。
A.
正确
B.
错误
查看完整题目与答案
【单选题】常用的通量测定方法中，（）强调根据乱流扩散理论，通过单位面积的任意动量或标量的通量密度是其浓度梯度与扩散系数的函数。
A.
波文比-能量平衡法
B.
空气动力学法
C.
涡度相关法
D.
感热密度分析法
查看完整题目与答案
【多选题】(4)组织层次的副作用包括()
A.
层次越多，费用越高
B.
层次越多，高层管理越繁忙
C.
层次越多，计划控制越复杂
D.
层次越多，沟通的难度和复杂性越大
查看完整题目与答案
【单选题】According to the passage, which of the following statements is TRUE?
A.
Buy Nothing Day has become popular in the United States.
B.
Restaurants have a tradition of donating food on holidays.
C.
Girl shops are expected to be closed on Buy Nothing Day.
D.
Children like the idea of Buy Nothing Day best.
查看完整题目与答案
【单选题】Ad valorem tariffs are collected as
A.
fixed amounts of money per unit traded.
B.
a percentage of the price of the product.
C.
a percentage of the quantity of imports.
D.
All of the above.
查看完整题目与答案
【单选题】在教学过程中，教师为了让学生掌握知识的本质意义，需要变换知识的呈现方式，其中本质属性保持恒在，而非本质属性可有可无，这在心理学中称为（ ）。
A.
变式
B.
比较
C.
概括
D.
抽象
查看完整题目与答案
【单选题】Read the paragraph below. Find the topic sentence:a) Learning a second language can provide a deeper understanding a foreign culture. b) Social habits that may not make sense to most outsiders might s...
A.
Learning a second language can provide a deeper understanding a foreign culture.
B.
Social habits that may not make sense to most outsiders might start to make more sense after a few vocabulary lessons.
C.
For example, I always wondered why my Dutch cousins rarely said “you’re welcome” after I said “thank you”.
D.
My cousin can speak English but sometimes makes mistakes.
E.
At first I thought he was being rude, but when I learned more about his language I realized that they don’t use “you’re welcome” the same way we do: in response to “thank you”.
F.
They actually say something that translates to “if you please” when they offer you something.
G.
This is one of the first things I learned about Dutch culture when I started to learn their language and it gave me a different perspective on the roles of the host and guest, since in Dutch the onus to be polite is on the host, and not the guest as it seems to be in English.
查看完整题目与答案
【单选题】热扩散系数的单位是
A.
W/m ℃
B.
W/m2 ℃
C.
m2/s
D.
m/s
查看完整题目与答案
【简答题】写出下列物理量的单位(无单位的必须写“无”) : 热导率 热扩散系数
查看完整题目与答案