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【单选题】
计算机传输介质中传输最快的是.A.
双绞线
B.
光缆
C.
铜质电缆
D.
同轴电缆
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举一反三
【单选题】Now, go upstairs _________ and clean your room!
A.
at once
B.
for once
C.
to once
D.
hurry up
【简答题】分解因式：8（x 2 -2y 2 ）-x（7x+y）+xy。
【简答题】阅读理解 Mr.Jenkins liked all kinds of delicious food. As an important officer, he was often asked to dinner. The shopkeepers tried their best to fawn on(巴结)him. They knew it was good for their business. ...
【简答题】麻醉中的手术病人发生溶血性反应最早征象A. 伤口渗血和低血压 ,B=K.$ B．腰背酸痛 eTp`-r* C．胸闷、呼吸困难 l+F‑I>k!6 D．寒战、高热 P?xo‑p/ E．面部潮红、出现荨麻疹 $PX!hU@cK ，，，，bo.ry;3c
【简答题】给下列图片选择相应的句子。 ( ) 1. A. Close your mouth. ( ) 2. B. Open your mouth. ( ) 3. C. Touch your nose. ( ) 4. D. Touch your ear.
【简答题】分解因式：3x 2 -7x-6=______； 6x 2 -7x-5=______．
【单选题】Now, go upstairs and clean your room!
A.
at once
B.
in once
C.
once
D.
immediately at once
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