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【简答题】
异步通信是以 为单位进行传输,字符与字符之间的 是任意的,但每个字符中的各位是以 传送的,即字符之间不一定有“位间隔”的整数倍的关系,但同一字符内的各位之间的距离均为“位间隔”的整数倍。
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皮皮学刷刷变学霸
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【单选题】患儿，3岁。上午开始流涕，发热，体温最高38.2℃，在家服用小儿退热药及双黄连口服液，吃晚饭时发现患儿面部有皮疹，体检：精神状态良好，耳后、枕部触及花生大小淋巴结，有触痛，面、颈及躯干有红色斑丘疹，该患儿诊断为（）
A.
风疹
B.
麻疹
C.
幼儿急疹
D.
猩红热
E.
荨麻疹
【单选题】What’s the best way to lose weight according to the author?
A.
Learn to decrease stress and anxiety.
B.
Exercise as much as possible.
C.
Keep a healthy diet while exercising.
D.
Be on a diet and give up exercising.
【单选题】患儿，3岁。上午开始流涕，发热，体温最高38．2℃，在家服用小儿退热药及双黄连口服液，吃晚饭时发现患儿面部有皮疹，体检：精神状态良好，耳后、枕部触及黄豆及花生大小淋巴结，有触痛，面、颈及躯干有红色斑丘疹是（）
A.
风疹
B.
麻疹
C.
幼儿急疹
D.
猩红热
E.
荨麻疹
【单选题】Armstrong's quote is utilized in the last paragraph because______.
A.
it exemplifies the attitude of the nations as a result of the Space Race
B.
it is important to hear and understand the words of the pioneers who took part in the project
C.
it summarizes the philosophy that the author is attempting to convey in the text
D.
it defied all expectation and signaled a great step forward for technology
【单选题】患儿,3岁,上午开始流涕,发热,体温最高38、2°C,在家服用小儿退热药及双黄连口服液,吃晚饭时发现患儿面部有皮疹,体检:精神状态良好,耳后.枕部触及黄豆及花生大小淋巴结,有触痛,面.颈及躯干有红色斑丘疹
A.
风疹
B.
麻疹
C.
幼儿急疹
D.
猩红热
E.
荨麻疹
【单选题】患儿，3岁。上午开始流涕，发热，体温最高38.2℃，在家服用小儿退热药及双黄连口服液，吃晚饭时发现患儿面部有皮疹，体检：精神状态良好，耳后、枕部触及花生大小淋巴结，有触痛，面、颈及躯干有红色斑色疹（）
A.
风疹
B.
麻疹
C.
幼儿急疹
D.
猩红热
E.
荨麻疹
【单选题】Why does Michelle Obama hold a strong fascination for the author?
A.
She will pay closer attention to the interests of African-American women.
B.
She will present to the world a new image of African-American women.
C.
She possesses many admirable qualities becoming a First Lady.
D.
She serves as a role model for African women.
【单选题】The author was grievous for the reason that______.
A.
the World Trade Center towers were attacked by terrorists
B.
Armstrong declined his interview for a second time
C.
the interview would be canceled for the transportation difficulty
D.
Armstrong was on his way to Huston for another interview
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