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【简答题】
已知函数 f(x)= 1 3 x 3 +m x 2 x≤0 e x -1 x＞0 （1）讨论函数f（x）的极值情况； （2）设g（x）=ln（x+1），当x 1 ＞x 2 ＞0时，试比较f（x 1 -x 2 ）与g（x 1 -x 2 ）及g（x 1 ）-g（x 2 ）三者的大小；并说明理由．
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【判断题】A credit memorandum from a seller informs a buyer of the seller's credit to its Accounts Payable account arising from a sales return or allowance.
A.
正确
B.
错误
【单选题】古语“漫卷诗书喜欲狂”、“怒发冲冠”、“哀民生之多艰”、“风生鹤唳,草木皆兵”分别表达了哪些情绪 ?
A.
喜、怒、哀、惧
B.
喜、哀、怒、惧
C.
喜、惧、怒、哀
D.
喜、惧、哀、怒
【单选题】古语“漫卷诗书喜欲狂”、“怒发冲冠”、“风生鹤唳,草木皆兵”、“哀民生之多艰”依次表达了的情绪是
A.
喜、惧、哀、怒
B.
喜、怒、哀、惧
C.
喜、惧、怒、哀
D.
喜、怒、惧、哀
【简答题】某企业下设一个基本生产车间和一个辅助生产车间。基本生产车间生产甲、乙两种产品,采用品种法计算成本。基本生产成本明细账设置 “直接材料”、“直接人工”和“制造费用”三个成本项目。辅助生产车间的制造费用不通过“制造费用”的账户进行核算。 ( 1)200×年10月份发生的经济业务如下: 1基本生产车间领料50000元,其中:直接用于甲产品的 A 材料 10000元,直接用于乙产品的 B 材料 15000...
【单选题】古语“漫卷诗书喜欲狂”“怒发冲冠”“哀民生之多艰”“风声鹤唉”分别表达的情绪是( )
A.
喜、怒、惧、哀
B.
怒、惧、哀、喜
C.
喜、怒、哀、惧
D.
惧、怒、喜、哀
【单选题】A debit to Sales Returns and Allowances and a credit to Accounts Receivable:
A.
Reflects an increase in amount due from a customer.
B.
Recognizes that a customer returned merchandise and/or received an allowance.
C.
Requires a debit memorandum to recognize the customer's return.
D.
Is recorded when a customer takes a discount.
E.
Reflects a decrease in amount due a supplier.
【单选题】13-22-1: A manufacturing company received a substantial sales return in the last month of the year, but the credit memorandum or the return was not prepared until after the auditors had completed thei...
A.
Receiving reports are prepared or all materials received and such reports are accounted or on a timely basis.
B.
Aged trial balance of accounts receivable is prepared.
C.
Credit memoranda are prenumbered and all numbers are accounted for.
D.
A reconciliation of the trial balance of customers’ accounts with the general ledger control is prepared periodically.
【简答题】在图2．11中，曲线1和2分别为电动机和负载的机械特性，试判断哪些是系统的稳定平衡点?哪些不是?
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