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【单选题】
在多方案决策中,如果各个投资方案的现金流量是独立的,其中任一方案的采用与否均不影响其他方案采用,则方案之间存在的关系为
A.
正相关
B.
正相关
C.
独立
D.
互斥
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参考答案:
举一反三
【单选题】变频器的主回路连线中,电源侧连接线的电流密度可以按( )A/mm2来考虑。
A.
1A/mm2
B.
4A/mm2
C.
2.5A/mm2
D.
6A/mm2
查看完整题目与答案
【单选题】The policeman asked the man ____ at 9 o'clock last night. [ ]
A.
what he was doing
B.
what he is doing
C.
what was he doing
查看完整题目与答案
【判断题】企业向国家机关缴纳税款,体现债务与债权的关系。( )
A.
正确
B.
错误
查看完整题目与答案
【多选题】联动试车包括( )。
A.
单机设备的无负荷运转
B.
管道的吹扫、气密
C.
装填水运、油运
D.
仪表联动调校
查看完整题目与答案
【单选题】What should students do each night?
A.
Review their progress.
B.
Rank items.
C.
Make a to-do list.
D.
Focus on the most important things.
查看完整题目与答案
【单选题】The policeman asked the man ______ at 9 o'clock last night. [ ]
A.
what he was doing
B.
what he is doing
C.
what was he doing
D.
what is he doing
查看完整题目与答案
【单选题】—My mom was mad at me last night. What should I do?—Please say sorry to her________.
A.
loudly
B.
lovely
C.
probably
D.
politely
查看完整题目与答案
【简答题】案例内容: 1. 张大爷听说低温保存药物,将家里药都放到了冰箱中,可是最近,老伴在吃药时,发现 Vc 泡腾片表面起了皮了。 2. 张大爷看新闻,一个四岁的孩子因为直接服用泡腾片,造成窒息死亡,大爷很担心。 根据上述案例内容分析以下问题: (1) 什么叫泡腾片? (2) 泡腾片的储存条件? (3) 如何服用泡腾片? (4) 为什么冰箱里的维生素 C 泡腾片起皮了呢? (5) 为什么那名四岁孩子直接口...
查看完整题目与答案
【单选题】– I coughed a lot last night. What should I do? – If I _____ you, I would go to see the doctor at once.
A.
am
B.
were
C.
was
查看完整题目与答案
【判断题】( )调整气缸速度时,让速度控制阀的节流阀从全闭状态开始,慢慢打开为好。
A.
正确
B.
错误
查看完整题目与答案
相关题目:
【单选题】变频器的主回路连线中,电源侧连接线的电流密度可以按( )A/mm2来考虑。
A.
1A/mm2
B.
4A/mm2
C.
2.5A/mm2
D.
6A/mm2
查看完整题目与答案
【单选题】The policeman asked the man ____ at 9 o'clock last night. [ ]
A.
what he was doing
B.
what he is doing
C.
what was he doing
查看完整题目与答案
【判断题】企业向国家机关缴纳税款,体现债务与债权的关系。( )
A.
正确
B.
错误
查看完整题目与答案
【多选题】联动试车包括( )。
A.
单机设备的无负荷运转
B.
管道的吹扫、气密
C.
装填水运、油运
D.
仪表联动调校
查看完整题目与答案
【单选题】What should students do each night?
A.
Review their progress.
B.
Rank items.
C.
Make a to-do list.
D.
Focus on the most important things.
查看完整题目与答案
【单选题】The policeman asked the man ______ at 9 o'clock last night. [ ]
A.
what he was doing
B.
what he is doing
C.
what was he doing
D.
what is he doing
查看完整题目与答案
【单选题】—My mom was mad at me last night. What should I do?—Please say sorry to her________.
A.
loudly
B.
lovely
C.
probably
D.
politely
查看完整题目与答案
【简答题】案例内容: 1. 张大爷听说低温保存药物,将家里药都放到了冰箱中,可是最近,老伴在吃药时,发现 Vc 泡腾片表面起了皮了。 2. 张大爷看新闻,一个四岁的孩子因为直接服用泡腾片,造成窒息死亡,大爷很担心。 根据上述案例内容分析以下问题: (1) 什么叫泡腾片? (2) 泡腾片的储存条件? (3) 如何服用泡腾片? (4) 为什么冰箱里的维生素 C 泡腾片起皮了呢? (5) 为什么那名四岁孩子直接口...
查看完整题目与答案
【单选题】– I coughed a lot last night. What should I do? – If I _____ you, I would go to see the doctor at once.
A.
am
B.
were
C.
was
查看完整题目与答案
【判断题】( )调整气缸速度时,让速度控制阀的节流阀从全闭状态开始,慢慢打开为好。
A.
正确
B.
错误
查看完整题目与答案
参考解析:
知识点:
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