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【单选题】
While an electrician was adding additional circuits for the Data Center， the system running the Database inadvertently powered down. The fallover of the service IP labels and volume groups to the hot standby node completed as expected； however， the database did not start. The database log file indicated that the database was already started. What is the most likely cause of this problem？（）A.
The shared logical volumes and filesystems did not have database permissions.
B.
There was a test instance running on the standby system that must be shutdown.
C.
The tablespaces had an indicator indicating that the database had not shutdown properly.
D.
The startup script for the highly available instance did not first perform cleanup operations.
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【简答题】半导体中中存在两种载流子:____和____。纯净的半导体称为____,它的导电能力很差。掺有少量其他元素的半导体称为杂质半导体。杂质半导体分为两种:N型半导体--多数载流子是____;P型半导体--多数载流子是____。当把P型半导体和N型半导体结合在一起时,在两者的交界处形成一个____结,这是制造半导体器件的基础。
【简答题】纯净的半导体称为____,它的导电能力很____。在纯净的半导体中掺入少量的____价元素,可形成P型半导体,又称____型半导体,其中多数载流子为____,少数载流子为____。 2、在本征半导体中掺入____价元素,可形成N型半导体,其中多数载流子为____,少数载流子为____,它的导电能力比本征半导体____。
【简答题】纯净的半导体称为本征半导体,它的导电能力很____。(选填差或者好)。
【单选题】A supermarket places its store brand of blackberry jam priced at $5 per jar in the fruit preserves aisle, alongside the jam jars of a better known brand—whose products are priced at $8 apiece. Store m...
A.
by-product pricing
B.
product bundle pricing
C.
captive product pricing
D.
psychological pricing
E.
seasonal pricing
【单选题】I'm sorry to you so much trouble. I hope you can forgive me and have a good rest now.
A.
give
B.
be given
C.
have given
D.
be giving
【简答题】补全对话。 Mum: Where 1. you 2. yesterday, Jim? Jim: I 3. to the store in the morning. I 4. a pair of shoes and a T-shirt. In the afternoon, I 5. to the gym and 6. ping-pong with Jenny. I 7. Jenny to hit t...
【单选题】-I'm sorry to have shouted at you. I didn't mean to be so rude to you. -You were very angry. Anyway, ____.
A.
you're right
B.
you're kind
C.
it doesn't matter
D.
I'm sorry
【单选题】下列各项关于资产预计未来现金流量及其现值的表述中，正确的是()。
A.
企业不应当考虑未来年度因实施已承诺重组减少的现金流出对预计未来现金流量的影响
B.
对于在建工程，企业在计算其未来现金流量时，不应当包括预期为使其达到预定可使用状态而发生的全部现金支出
C.
未来现金流量为外币的情况下，应当以该资产所产生的未来现金流量的记账本位币为基础预计其未来现金流量，并按照该货币使用的折现率计算资产的现值
D.
未来现金流量为外币的情况下，应先按未来现金流量的结算货币为基础预计其未来现金流量，并按照适用的折现率计算现值，然后再按现值当日的即期汇率折算成记账本位币表示的预计未来现金流量现值
【简答题】半导体中中存在两种载流子: 和 。纯净的半导体称为 ,它的导电能力很差。掺有少量其他元素的半导体称为杂质半导体。杂质半导体分为两种: 型半导体——多数载流子是 ; 型半导体——多数载流子是 。当把 P 型半导体和 N 型半导体结合在一起时,在两者的交界处形成一个 结,这是制造半导体器件的基础。
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