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【判断题】
坐标变换的原则是仅需在不同坐标系下电机物理模型产生的磁势相同。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】When I reached home, my husband was lying on the floor, _____ the kids with toys. [ ]
A.
to entertain
B.
entertains
C.
entertaining
D.
entertained
【简答题】第三方物流市场具有 、 和高增长率的特征。
【简答题】就世界范围而言全世界的第三方物流市场具有（ ）的特征。
【单选题】关于脓肿切开的目的，下列哪个说法是不正确的
A.
预防感染向颅内扩散
B.
预防并发边缘性骨髓炎
C.
排出脓液达到消炎解毒的目的
D.
有利于细菌培养确定病原菌
E.
解除局部疼痛、肿胀
【单选题】听力原文： When my husband was promoted, we put our house up for sale. Three weeks later, it was still in the market. I became a busy housekeeper. Every room had to be kept tidy, and dishes had to be washe...
A.
She wanted to move to New York.
B.
Her husband had lost his job.
C.
She wanted to have a cleaner house.
D.
Her husband had got a higher position.
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