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【单选题】
听力原文：M: Where have you been these days? W: In the hospital. M: In the hospital? What happened? W: Didn't you know that our room caught fire last Friday evening? M: Oh, really? I'm sorry to hear that. But what caused the fire? W: Well, the light in our room was turned off at 11:30 as usual. Alice lit a candle to go on reading. Unfortunately she fell asleep with the candle still burning beside her. Then her bed caught fire. M: Oh, my God! I'm sorry to hear that. And how was Alice? W: She was badly burnt and is still in hospital. M: Was she the only one burnt? W: No. There wore two more. M: You should be careful in future. W: We will. How is Alice now?A.
She is badly burnt.
B.
She is well again.
C.
She is still in hospital.
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【简答题】根据《公司法》规定，下列选项中，属于有限责任公司特征的是（ ）。
【多选题】关于电场的性质,下列说法正确的是
A.
电场是假想出来的，并不真实存在
B.
电场是真实存在的物质
C.
电场看不见也摸不着，所以无法测量
D.
可以通过对电场力的测量间接测量电场的分布
【单选题】关于电介质下列说法正确的是（）
A.
附加场E使介质内E小于外场E 0
B.
均匀介质的极化电荷分布在介质内部
C.
极化强度P仅由介质性质决定
D.
D矢量只由自由电荷决定与极化无关
【单选题】关于电场、电场线的性质,下列说法正确的是( )
A.
在电场中的任一点,电荷的受力方向,就是该点的电场方向
B.
电场线就是带电粒子在电场中的运动轨迹
C.
电场线在特殊情况下可能相交
D.
电场线的疏密表示电场的强弱
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