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【单选题】
苯酚和苯甲醇共同的化学性质是( )。A.
酸性
B.
与钠反应放出氢
C.
遇FeCl3溶液显紫色
D.
与Na OH溶液反应
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举一反三
【简答题】撕纸的过程是注重手、 、 协调并用参与的过程。
【单选题】The Spring and Autumn Annals
A.
the most ancient collection of Chinese prose writings with fragments of disconnected and diverse individual official papers.
B.
The earliest chronicle in China with concise and meticulous language
C.
Another historical work recording the history of each of the states in the Pre-Qin times
D.
The first comprehensive historical account of the major political, social and military events of the Spring and Autumn period, setting the first widely imitated prose model
【简答题】Watch the interviews and fill in the blanks. Video Track 1-7-3srt.wmv Komiko:I'm a very healthy person. I have asthma, but I hardly ever get sick. (1) — don’t smoke. You should exercise every day, I d...
【简答题】单位负反馈二阶系统开环传函为G(s)=1/s(s+1), 其静态位置误差系数Kp=_____ ,单位阶跃输入下的稳态误差是____。 静态速度误差系数Kv=_____ ,单位速度输入下的稳态误差是____。 静态加速度误差系数Ka= ____,单位加速度输入下的稳态误差是__。
【简答题】Daniel: Drink a lot of fluids, get a good night’s __________(test / rest).
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