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【多选题】
关于规模经济，下面哪些说法是正确的？
A.
规模经济描述了企业长期生产行为的规律
B.
规模经济描述了企业短期生产行为的规律
C.
劳动分工、生产专业化是产生规模经济的主要原因
D.
边际产量递减规律是产生规模经济的主要原因
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举一反三
【多选题】下列属于品质分组的有
A.
考研学生按报考学校代码分组
B.
企业职工按工作岗位分组
C.
学生按成绩等级分组
D.
工人按产量分组
E.
发电站按发电能力分组
查看完整题目与答案
【单选题】下列程序段运行后,变量s的值是________
A.
2:b=1:s=0
B.
r I=1 To 2 Step1
C.
s+a
D.
a+b
E.
b
F.
c
G.
xt I
H.
3
I.
0
J.
2 K. 4
查看完整题目与答案
【单选题】下列属于品质分组的是( )
A.
企业按职工人数分组
B.
企业按工业总产值分组
C.
企业按经济类型分组
D.
企业按资金占用额分组
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【单选题】_____ she is the only daughter of the boss, she started from the lowest position as a common employee.
A.
Unless
B.
While
C.
Since
D.
As
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【单选题】Had she started to do it right now, she will get it done before Christmas Eve.
A.
Only she starts
B.
If she starts
C.
If she had started
D.
Would she start
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【单选题】She started to work _____ a will .
A.
in
B.
against
C.
with
D.
for
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【单选题】She might have been in time for the train, but she _______late.
A.
started
B.
has started
C.
was to start
D.
had started
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【单选题】现需制造一汽车传动齿轮,要求表面具有高的硬度、耐磨性和高的接触疲劳极限,心部具有良好的韧性,最好是采用下面哪种材料及工艺?( )
A.
T10钢淬火+低温回火
B.
45钢经调质处理
C.
20CrMnTi经渗碳后淬火+低温回火
D.
20钢经表面淬火
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【判断题】广西目前为止没有人感染牛带绦虫的病例报导。
A.
正确
B.
错误
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【单选题】The mother tried to look calm at the sad news, but the moment she started to speak, she ______ .
A.
displayed herself
B.
delayed herself
C.
betrayed herself
D.
strayed herself
查看完整题目与答案
相关题目：
【多选题】下列属于品质分组的有
A.
考研学生按报考学校代码分组
B.
企业职工按工作岗位分组
C.
学生按成绩等级分组
D.
工人按产量分组
E.
发电站按发电能力分组
查看完整题目与答案
【单选题】下列程序段运行后,变量s的值是________
A.
2:b=1:s=0
B.
r I=1 To 2 Step1
C.
s+a
D.
a+b
E.
b
F.
c
G.
xt I
H.
3
I.
0
J.
2 K. 4
查看完整题目与答案
【单选题】下列属于品质分组的是( )
A.
企业按职工人数分组
B.
企业按工业总产值分组
C.
企业按经济类型分组
D.
企业按资金占用额分组
查看完整题目与答案
【单选题】_____ she is the only daughter of the boss, she started from the lowest position as a common employee.
A.
Unless
B.
While
C.
Since
D.
As
查看完整题目与答案
【单选题】Had she started to do it right now, she will get it done before Christmas Eve.
A.
Only she starts
B.
If she starts
C.
If she had started
D.
Would she start
查看完整题目与答案
【单选题】She started to work _____ a will .
A.
in
B.
against
C.
with
D.
for
查看完整题目与答案
【单选题】She might have been in time for the train, but she _______late.
A.
started
B.
has started
C.
was to start
D.
had started
查看完整题目与答案
【单选题】现需制造一汽车传动齿轮,要求表面具有高的硬度、耐磨性和高的接触疲劳极限,心部具有良好的韧性,最好是采用下面哪种材料及工艺?( )
A.
T10钢淬火+低温回火
B.
45钢经调质处理
C.
20CrMnTi经渗碳后淬火+低温回火
D.
20钢经表面淬火
查看完整题目与答案
【判断题】广西目前为止没有人感染牛带绦虫的病例报导。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The mother tried to look calm at the sad news, but the moment she started to speak, she ______ .
A.
displayed herself
B.
delayed herself
C.
betrayed herself
D.
strayed herself
查看完整题目与答案