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【多选题】
物联网中间件发展过程可以分为( )阶段。A.
硬件中间件阶段
B.
应用程序中间件阶段
C.
服务中间件阶段
D.
架构中间件阶段
E.
解决方案中间件阶段
F.
接口中间件阶段
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【简答题】______乃气中之精粹，是生命产生的本原。
【简答题】Let’s say you have a piece of wood, a nail, and a hammer. Pretend the wood is a person, and the nail is a mean rumor(谣言) about that person. If you hammer in the nail, you’re obviously hurting him or h...
【单选题】Robert goes to the gym only two or three times a year. He_does exercise
A.
lways
B.
never
C.
usually
D.
seldom
【单选题】. －Hello，Anne，it’s Jack here Can I speak to Robert，please? －Hi，Jack．Robert_______in the garage,Can I get him to call you back? －Sure．Thanks．
A.
has worked
B.
is working
C.
worked D will work
【单选题】Robert with his two kids ________ to the beach for vacation every year.
A.
go
B.
went
C.
are going
D.
goes
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