更多“对企业而言，计划可以起到哪些作用？”相关的问题
在创业的过程中，我们需要对资源进行（）。
A.筹集
B.整合
C.拓展
D.摒弃
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在诊断能量范围内，X线与物质作用时，不发生的效应是（）
A.光电效应
B.康普顿效应
C.相干散射
D.康普顿散射
E.电子对效应
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温肾壮阳的药物有（）
A . 补骨脂
B . 硫黄
C . 何首乌
D . 枸杞子
E . 桑螵蛸
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Many people are surprised when they find the Internet(因特网)was set up in the 1960s. At that time, computers were large and expensive. Computer networks(网络) didn’t work well. If one computer in the network broke down, then the whole network stopped. So a new network system (系统) had to be set up. It should be good enough to be used by many different computers. If a part of the network was not working, information could be sent through another part. In this way computer network system would keep on working all the time. At first the Internet was only used by the government, but in the early 1970s,universities(大学) ,hospitals and banks were allowed(允许) to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Today it is easy to get on-line(上网) and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among students. The Internet has now become one of the most important parts of people’s life.
A. less than 30 B. about 40 C. about 20
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旅游故障按照故障涉及面大小可划分为单一性故障和（）。
A.合成性故障
B.复合性故障
C.多样性故障
D.复杂性故障
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作物缺N严重的主要症状（）。
A.叶片呈绿 B.叶片失绿变黄 C.茎叶分长 D.细胞肥大而薄壁
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右向左分流型先天性心脏病包括（）
A.房间隔缺损 B.室间隔缺损 C.动脉导管未闭 D.法洛四联症 E.肺动脉狭窄
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下表为甲、乙、丙三家生产同类产品的公司的市场份额、心理份额和情感份额。结合该表分析，以下说法不正确的是( )。
A．<P align=center></P>
B．市场份额
C．心理份额
D．情感份额
E．1991
F．1992
G．1993
H．1991
I．1992
J．1993
K．1991
L．1992
M．1993
N．甲
O．50%
P．47%
Q．44%
R．60%
S．58%
T．54%
U．45%
V．42%
W．39%
X．乙
Y．30%
Z．34%
Z．37%
Z．30%
Z．3l%
Z．35%
Z．44%
Z．47%
Z．53%
Z．丙
Z．20%
Z．19%
Z．19%
Z．10%
Z．11%
Z．11%
Z．11%
Z．11%
Z．8%
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QJZ系列八达真空组合开关控制电源电压的可靠工作范围是75℅—110℅（）
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新闻的（）直接关系我国的政治、经济、文化工作和人们的思想、日常生活。
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社会主义基本制度初步确立后，我国社会在哪些方面发生重大变化？
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在存在现金折扣的情况下,总价法下确定企业应收账款的入账金额应按没有扣除现金折扣的实际售价确定。
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三棱镜的光学特性有折光性、（）、使物像向尖端移动，是透镜的最基本的光学单元。
A.屈光性
B.衍射性
C.无聚焦能力，不能形成焦点
D.成实像
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为了拓宽输入电压范围，提高电源的效率和抗干扰能力，PLC的内部电源一般采用（)。
A、并联稳压电源B、串联稳压电源C、锂电池D、开关稳压电源
B、串联稳压电源C、锂电池D、开关稳压电源
C、锂电池D、开关稳压电源
D、开关稳压电源
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