【单选题】【消耗次数：1】
Please drop in whenever you can.. I’d like to keep _________ touch..
①
in
②
to
③
on
④
with
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相关题目
【单选题】
15.Please drop in whenever you can.. I’d like to keep _________ touch..
①
in
②
to
③
on
④
with
【单选题】
I’d like to book a flight to Shanghai, please.
①
No, of course not
②
Do you mind if I said no?
③
Yes, sir, single or return?
④
You can’t. We are busy
【单选题】
You________return the book now. You can keep it till next week if you like.
①
cant
②
mustnt
③
neednt
④
may not
【单选题】
12.You _____ return the book now. You can keep it till next week if you like.
①
cant
②
mustnt
③
neednt
④
may not
【单选题】
Hello, I’d like to speak to Mark, please.
①
Yes, I’m Mark
②
This is Mark speaking
③
It’s me here
④
This is me
【单选题】
Would you please keep silent? The weather report __________ and I want to listen.
①
is broadcast
②
is being broadcast
③
has been broadcast
④
had been broadcast
【单选题】
I’d like to （ ）2 tickets to Sanya , please.
①
reserve
②
booking
③
reservation
④
bought
【单选题】
I’d like to take you to the coffee house on the corner.
①
Thank you. You shouldn’t’ do that
②
Thanks, I’d like to go with you
③
No, you can’t say so
④
No, no, You can’t do that
【单选题】
how long can I stay in the mountain ?
( ) you like.
①
As far as
②
As well as
③
As soon as
④
As long as
【单选题】
Can you turn down the radio, please?
①
Oh, I know
②
I’m sorry, I didn’t realize it was that loud
③
I’ll keep it down next time
④
Please forgive me
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简述冲突可串行化与可串行话调度的关系。
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关系模式由2NF转化为3NF是消除了[填空]对码的[填空]。
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属性X函数决定Y，且X的真子集X也能函数决定Y，则称Y[填空]函数依赖X。
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数据库中，每个事务都感觉不到系统中其他事务在并发地执行，这一特性称为事务的[填空]。
【简答题】
TCSEC中规定[填空]级别及以上的系统必须实现审计。