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【单选题】
下列关于操作系统任务管理的说法中,错误的是A.
windows操作系统支持多任务处理
B.
多任务处理通常是将CPU时问划分成时间片,轮流为多个任务服务
C.
并行处理技术可以让多个CPU同时工作,提高计算机系统的效率
D.
多任务处理要求计算机必须配有多个CPU
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反馈参考答案：
举一反三
【单选题】听力原文：M: Good morning. W: Good morning. How can I help you? M: I understand that the school organizes...umm, trips to different... W: Yes, we run five every month: three during weekends and two Wednesd...
A.
Once a week.
B.
Three every month.
C.
Five every month.
D.
Two every month.
【单选题】When the corporation issuing the bonds has the right to repurchase the bonds prior to the maturity date for a specific price, the bonds are
A.
convertible bonds
B.
unsecured bonds
C.
debenture bonds
D.
callable bonds
【单选题】听力原文：M: Good morning. W: Good morning, sir. M: I'd like to enquire about flights to Paris. W: Yes, sir. M: Could you tell me how often they go? W: Let me see. The first one leaves at seven in the morn...
A.
Traveler and agent.
B.
Manager and worker.
C.
Shop assistant and customer.
D.
Classmates.
【单选题】听力原文：M: Good morning. W: Good morning, sir. M: I'd like to enquire about flights to Paris. W: Yes, sir. M: Could you tell me how often they go? W: Let me see. The first one leaves at seven in the morn...
A.
Traveler and agent.
B.
Manager and worker.
C.
Shop assistant and customer.
D.
Classmates.
【简答题】货币政策工具是指中央银行为了实现货币政策目标所采用的政策手段，下列货币政策工具中，属于选择性政策工具的是（ ）。
【单选题】Receptionist: Good morning. Hopkins Dental Surgery. Charles: Good morning ______. Receptionist: I see. Can you come on Thursday morning? Charles: No, sorry I can't. I'm afraid I have classes every mor...
A.
I'd like to make an appointment to see the dentist, please.
B.
I've got a toothache. Would you please help me?
C.
I've got the toothache. When can you come to see me?
D.
I would appreciate it if you tell the dentist to come right now.
【单选题】听力原文：M: Good morning. W: Good morning. How can I help you? M: I understand that the school organizes...umm, trips to different... W: Yes, we run five every month: three during weekends and two Wednesd...
A.
Once a week.
B.
Three every month.
C.
Five every month.
D.
Two every month
【单选题】听力原文：M: Good morning. W: Good morning, sir. M: I'd like to enquire about flights to Paris. W: Yes, sir. M: Could you tell me how often they go? W: Let me see. The first one leaves at seven in the morn...
A.
Traveler and agent.
B.
Manager and worker.
C.
Shop assistant and customer.
D.
Classmates.
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