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【多选题】
心血管系统( )。A.
是由心脏和血管组成
B.
血管分为动脉、静脉和毛细血管
C.
动脉是指含动脉血液的血管
D.
静脉是指含静脉血液的血管
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举一反三
【单选题】- Can you recommend a place that's not too expensive? ( )
A.
Let me see. I thought I got more stuff than I thought.
B.
Let's see now ... The closest one that 1 can think of is Toby's.
C.
When you get to Yorkville. turn right. You'll see the post office across the street.
【简答题】Early one morning the subinspector at a station at the other end of the town rang me. An elephant was damaging the town. Would I please come and do something about it? I did not know what I could do,...
【简答题】简述TCP连接建立的三次握手过程。
【简答题】简述在TCP协议中连接建立时进行三次握手的应答过程。
【单选题】According to the passage, hanging on the phone waiting for someone to pick up at the other end, you might ______.
A.
have a high concentration of mind
B.
feel very annoyed at the people on the other end
C.
feel time is somehow slowed down
D.
be unable to hear the dialing tone
【单选题】Can you recommend ___________ to read?
A.
something nice
B.
everything nice
C.
nice something
D.
nice anything
【简答题】简述 TCP连接建立时三次握手的工作过程。
【简答题】在TCP/IP协议中，TCP协议提供可靠的连接服务，采用三次握手建立一个连接。请简述三次握手的过程。
【单选题】2017 年 12 月 9 日 , 国家统计局发布数据显示 , 1 - 11 月平均全国居民消费价格总水平比 2016 年同期上涨 1.5% 。结合下图信息 , 下列推断正确的是 ( ) 1 衣着需求量将急剧减少 2 我国产业结构不断优化 3 我国居民消费支出增加 4 我国国内经济企稳 向好
A.
． ①②
B.
． ③④
C.
． ②③
D.
． ①④
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