多项选择题

手术实施过程中遇到下列哪些情况，需要再次征得患者或家属同意并二次签()

A.更改原订手术方案
B.更换手术者
C.扩大手术切除范围
D.使用贵重耗材
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不定项选择
The private label products usually have very plain package and prices much lower than that of other branded products.
A．错误
B．正确
单项选择题
In Prof. Hoffmann’s mind, both Christmas and Easter are______________, yet, no matter if an American is a Christian or not, he or she will celebrate this special day, since this is the most significant holiday in the US, yet Easter is an exception, only Christians celebrate it.
A．find educational departments
B．religious festivals
C．find music departments
D．find economic departments
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