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【单选题】
锉刀在制造成型后,为了达到高硬度,可以先进行( )后,再低温回火。A.
退火
B.
正火
C.
淬火
D.
回火
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举一反三
【单选题】While walking the guest to the elevator, you ask the guest what they're looking forward to doing today. They complain about that they're not happy about today's special activities. How do you respond?
A.
Sympathize with the guest adimtting that you don't really like anything that's offered either.
B.
Act suprprised that they aren't excited about any of the options and tell them everything you know about each one, trying to convince them to get excited about something.
C.
Make a comment about how at least they have options but you have to work all day.
D.
Express your understanding mention how wonderful the weather is today and suggest some outdoor activites to enjoy it.
【单选题】事务的( )是指,当某个事务提交(COMMIT)后,对数据库的更新操作可能还停留在服务器磁盘缓冲区而未写入到磁盘时,即使系统发生障碍事务的执行结果仍不会丢失
A.
原子性
B.
一致性
C.
隔离性
D.
持久性
【单选题】Stop cutting trees, _____ the earth will become worse and worse. [ ]
A.
or
B.
and
C.
but
D.
then
【简答题】慢性非传染性疾病的预防与控制策略及措施包括______、______、______、______。
【多选题】Which of the following can be used to ask the guest when he wants the table?
A.
May I have your arrival time?
B.
At what time can we expect you?
C.
What time would you like your table?
D.
For how many people, please?
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