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【简答题】
设集合 是 中形如 的向量组成的集合,其中 取遍任意实数。(1)按照定义证明 是 的一个向量子空间。(2)求 的一个子空间 , 使得和子空间 为全空间,而交子空间 为零子空间。(坐在笔记本里,拍照上传)
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参考答案：
举一反三
【单选题】Read the selection from the section "Noise And Bugs." This made him interested in ecosystems. It also made him good at noticing things. What does the author mean by the word "interested"?
A.
happy
B.
curious
C.
scared
D.
worried
查看完整题目与答案
【判断题】在建工程用来核算企业固定资产在竣工之前的业务,不属于资产类账户。
A.
正确
B.
错误
查看完整题目与答案
【单选题】企业销售产品获得收入,一般意味着企业资产增加,以下账户不属于资产类账户的是()
A.
银行存款
B.
应收账款
C.
应付账款
D.
应收票据
查看完整题目与答案
【单选题】Read the selection from the section "Peanut Butter Was Running Low." The company answered. They dared him to get 72,000 retweets. If he could, they would give him a lifetime supply of peanut butter. W...
A.
faced
B.
bullied
C.
challenged
D.
threatened
查看完整题目与答案
【单选题】Read the selection from the section “Hurry! Could Be Gone Soon.” Popeyes warned people. The clothing probably will not last long, it said. What does the author mean by the phrase “the clothing probabl...
A.
the clothing will sell out quickly
B.
the clothing will wear out quickly
C.
the clothing will go out of style soon
D.
the clothing will need to be washed carefully
查看完整题目与答案
【判断题】从性质上说,企业的待摊费用并不是费用类账户,而是和预收账款一样属于资产类账户。
A.
正确
B.
错误
查看完整题目与答案
【单选题】“原材料”属于资产类账户，用于核算企业库存的各种材料，不包括
A.
外购半成品
B.
修理用备件
C.
工程物资
D.
燃料
查看完整题目与答案
【判断题】“预付账款”属于资产类账户,设置该账户的企业在预付、购货及结算货款时应通过该账户购货时再不能出现“应付账款”账户。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Read the selection from the section"Strong Move." The company sold an ugly holiday sweater earlier. It had the Popeyes logo and a chicken sandwich on the sweater. What does the word "logo" mean?
A.
a company's product
B.
a symbol for a brand
C.
a design on clothes
D.
a popular style
查看完整题目与答案
【单选题】印制精细线条花样,需要选择下面( )目数的镍网。
A.
60
B.
80
C.
120
查看完整题目与答案
相关题目：
【单选题】Read the selection from the section "Noise And Bugs." This made him interested in ecosystems. It also made him good at noticing things. What does the author mean by the word "interested"?
A.
happy
B.
curious
C.
scared
D.
worried
查看完整题目与答案
【判断题】在建工程用来核算企业固定资产在竣工之前的业务,不属于资产类账户。
A.
正确
B.
错误
查看完整题目与答案
【单选题】企业销售产品获得收入,一般意味着企业资产增加,以下账户不属于资产类账户的是()
A.
银行存款
B.
应收账款
C.
应付账款
D.
应收票据
查看完整题目与答案
【单选题】Read the selection from the section "Peanut Butter Was Running Low." The company answered. They dared him to get 72,000 retweets. If he could, they would give him a lifetime supply of peanut butter. W...
A.
faced
B.
bullied
C.
challenged
D.
threatened
查看完整题目与答案
【单选题】Read the selection from the section “Hurry! Could Be Gone Soon.” Popeyes warned people. The clothing probably will not last long, it said. What does the author mean by the phrase “the clothing probabl...
A.
the clothing will sell out quickly
B.
the clothing will wear out quickly
C.
the clothing will go out of style soon
D.
the clothing will need to be washed carefully
查看完整题目与答案
【判断题】从性质上说,企业的待摊费用并不是费用类账户,而是和预收账款一样属于资产类账户。
A.
正确
B.
错误
查看完整题目与答案
【单选题】“原材料”属于资产类账户，用于核算企业库存的各种材料，不包括
A.
外购半成品
B.
修理用备件
C.
工程物资
D.
燃料
查看完整题目与答案
【判断题】“预付账款”属于资产类账户,设置该账户的企业在预付、购货及结算货款时应通过该账户购货时再不能出现“应付账款”账户。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Read the selection from the section"Strong Move." The company sold an ugly holiday sweater earlier. It had the Popeyes logo and a chicken sandwich on the sweater. What does the word "logo" mean?
A.
a company's product
B.
a symbol for a brand
C.
a design on clothes
D.
a popular style
查看完整题目与答案
【单选题】印制精细线条花样,需要选择下面( )目数的镍网。
A.
60
B.
80
C.
120
查看完整题目与答案
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