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【多选题】
未来计算机的发展趋势是A.
提高性能
B.
缩小体积
C.
减少成本
D.
与多媒体技术结合
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皮皮学刷刷变学霸
举一反三
【单选题】Reading good books for a few hours every day can make a ______to children. [ ]
A.
problem
B.
difference
C.
product
D.
harm
【单选题】You are looking for the bar, how do you ask for directions?
A.
Just a moment, please……luggage cart
B.
Excuse me, which way to the bar?
C.
There is a post office near here.
D.
Let me introduce some Chinese food for you.
【单选题】The housing market has been for two years propping up consumers' spirits while the rest of the economy lies exhausted on the floor, still trying to struggle to its feet. According to the National Asso...
A.
the boom of real estate activity.
B.
the statistics on home prices.
C.
the role of housing market.
D.
the degree of consumer spirits.
【单选题】I don’t think it to stay up late in the night and sleep until midday the next day.
A.
make a difference
B.
makes good sense
C.
makes trouble
D.
make profit
【简答题】设序列x(n)=2δ(n+1)+δ(n)-δ(n-1)，则X(e jω )| ω=0 的值为______。
【简答题】1) What are students’ improper behaviors in writing tests? 2) According to the lecture, what is the very first step to avoid straying from the topic? 3) In an English essay, which sentence usually s...
【单选题】The housing market has been for two years propping up consumers' spirits while the rest of the economy lies exhausted on the floor, still trying to struggle to its feet. According to the National Asso...
A.
the boom of real estate activity.
B.
the statistics on home prices.
C.
the role of housing market.
D.
the degree of consumer spirits.
【单选题】小明每天早上 7 : 50 从家里出发,到距家 1000 米的学校上学,每天行走速度为 80 米 / 分。一天小明从加出发 5 分钟后,爸爸以 180 米 / 分的速度去追小明,并且在途中追上了他。 爸爸追上小明用了多长时间?
A.
6分钟
B.
4分钟
C.
5分钟
D.
8分钟
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