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【多选题】
不耐热的液体混合物通常采用一下哪几种方法分离A.
简单蒸馏
B.
常压蒸馏
C.
减压蒸精馏
D.
加压蒸馏
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【简答题】AT89S51单片机的P0、P1、P2、P3口各有什么用途，使用时应注意什么？
【简答题】public school
【单选题】What will happen in Hawaiis public school?
A.
The school days will be much shorter than before.
B.
The children in public school will be given more courses.
C.
The teachers in the public school will be granted a pay-raise.
D.
The academic record in Hawaii's public school remains high.
【判断题】The wall of stomach is protected from the acid contents by mucus forming a microenvironment over its mucosa.
A.
正确
B.
错误
【判断题】Public school in the U.K. is an independent secondary school which is run to make a profit and belongs to one of the public school associations.
A.
正确
B.
错误
【简答题】数列40、38、60、48、50、52、60、62的中位数为（ ）。
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