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【多选题】
关于电路中电流参考方向的下列说法,正确的是:( )。
A.
参考方向是假定的方向
B.
电流的参考方向可以任意选定,在电路中一般用箭头表示
C.
当电流的参考方向与实际方向一致时,电流为正值(I>0)
D.
当电流的参考方向与实际方向相反时,电流为负值(I<0)
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参考答案：
举一反三
【单选题】An analysis of company financial records shows that in every year that the company increased its advertising expenditures, sales increased. What can you say about the relationship between the two fac...
A.
Advertising expenditure and sales exhibited concomitant variation
B.
Increasing advertising expenditures led to increased sales.
C.
Increased sales led to an increase in advertising expenditures.
D.
Advertising and sales are inversely related.
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【判断题】钢筋混凝土梁中纵筋的截断位置,在钢筋的理论不需要点处截断。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】If prices are fixed, an increase in aggregate expenditures results in an increase in equilibrium GDP that
A.
is greater than the change in aggregate expenditure.
B.
is equal to the change in aggregate expenditure.
C.
is less than the change in aggregate expenditure.
D.
has no necessary relationship to the size of the change in aggregate expenditure.
查看完整题目与答案
【单选题】下列选项中,完全正确的一项是( )
A.
政府审计的审计主体是国家审计机关。
B.
部门审计对被审计单位具有处罚权。
C.
社会审计的审计结果提交对象是本单位主要负责人。
D.
政府审计需要接受委托后才能提供审计服务。
查看完整题目与答案
【简答题】Suppose that real consumption expenditures in a nation are $10,000 million, real investment expenditures are $8,000 million, real government expenditures are $5,000 million, real expenditures on impor...
查看完整题目与答案
【判断题】Ordinary repairs are expenditures that keep assets in normal, good operating condition.
A.
正确
B.
错误
查看完整题目与答案
【单选题】有关消化性溃疡的病理，以下哪种不正确
A.
溃疡的直径一般小于2cm
B.
胃溃疡多发生于胃角和胃窦小弯部
C.
十二指肠溃疡多发生于球部，前壁多见
D.
消化性溃疡多单发，胃溃疡直径一般<2.5cm
E.
溃疡的边缘不整齐
查看完整题目与答案
【多选题】Which of the following best explains why research and development expenditures in the construction industry lag behind expenditures in some other industries.
A.
companies see little need to spend money since most competitors are not investing either.
B.
Owners and designers tend to be conservative in specifying new products,materials, and methods
C.
New technologies are not time-proven and put the project at risk.
D.
It is often dificult to protect from competitors new technologies that are successfully perfected
查看完整题目与答案
【多选题】胃溃疡肉眼的特点是
A.
溃疡多为一个
B.
切面呈斜的漏斗状
C.
溃疡边缘整齐
D.
直径一般小于2cm
E.
溃疡底部平滑
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【判断题】静态链表与动态链表在元素的插入、删除上类似,不需做元素的移动。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】An analysis of company financial records shows that in every year that the company increased its advertising expenditures, sales increased. What can you say about the relationship between the two fac...
A.
Advertising expenditure and sales exhibited concomitant variation
B.
Increasing advertising expenditures led to increased sales.
C.
Increased sales led to an increase in advertising expenditures.
D.
Advertising and sales are inversely related.
查看完整题目与答案
【判断题】钢筋混凝土梁中纵筋的截断位置,在钢筋的理论不需要点处截断。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】If prices are fixed, an increase in aggregate expenditures results in an increase in equilibrium GDP that
A.
is greater than the change in aggregate expenditure.
B.
is equal to the change in aggregate expenditure.
C.
is less than the change in aggregate expenditure.
D.
has no necessary relationship to the size of the change in aggregate expenditure.
查看完整题目与答案
【单选题】下列选项中,完全正确的一项是( )
A.
政府审计的审计主体是国家审计机关。
B.
部门审计对被审计单位具有处罚权。
C.
社会审计的审计结果提交对象是本单位主要负责人。
D.
政府审计需要接受委托后才能提供审计服务。
查看完整题目与答案
【简答题】Suppose that real consumption expenditures in a nation are $10,000 million, real investment expenditures are $8,000 million, real government expenditures are $5,000 million, real expenditures on impor...
查看完整题目与答案
【判断题】Ordinary repairs are expenditures that keep assets in normal, good operating condition.
A.
正确
B.
错误
查看完整题目与答案
【单选题】有关消化性溃疡的病理，以下哪种不正确
A.
溃疡的直径一般小于2cm
B.
胃溃疡多发生于胃角和胃窦小弯部
C.
十二指肠溃疡多发生于球部，前壁多见
D.
消化性溃疡多单发，胃溃疡直径一般<2.5cm
E.
溃疡的边缘不整齐
查看完整题目与答案
【多选题】Which of the following best explains why research and development expenditures in the construction industry lag behind expenditures in some other industries.
A.
companies see little need to spend money since most competitors are not investing either.
B.
Owners and designers tend to be conservative in specifying new products,materials, and methods
C.
New technologies are not time-proven and put the project at risk.
D.
It is often dificult to protect from competitors new technologies that are successfully perfected
查看完整题目与答案
【多选题】胃溃疡肉眼的特点是
A.
溃疡多为一个
B.
切面呈斜的漏斗状
C.
溃疡边缘整齐
D.
直径一般小于2cm
E.
溃疡底部平滑
查看完整题目与答案
【判断题】静态链表与动态链表在元素的插入、删除上类似,不需做元素的移动。
A.
正确
B.
错误
查看完整题目与答案
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