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【简答题】
已知函数y= 1-x + x+3 的最大值为M，最小值为m，则 m M 的值为______．
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反馈参考答案：
举一反三
【单选题】正常血浆脂蛋白按密度高→低顺序的排列为:
A.
CM→VLDL→IDL→LDL
B.
CM→VLDL→LDL→HDL
C.
VLDL→CM→LDL→HDL
D.
HDL→LDL→VLDL→CM
【单选题】下列哪种情况下, 椎间盘内压力最小( )。
A.
座面与靠背夹角在 90 °
B.
座面与靠背夹角在 110 °
C.
座面与靠背夹角在120 °
D.
座面与靠背夹角在 130 °
【单选题】When formal channels of communication break down, negotiators are permitted to finding alternatives and can use which of the following?
A.
conversations over coffee breaks
B.
separate meetings between chief negotiators outside of the formal sessions
C.
off-the-record contacts between key subordinates
D.
all of the above
E.
none of the above
【单选题】When formal channels of communication break down, negotiators are permitted to finding alternatives and can use which of the following?
A.
conversations over coffee breaks
B.
separate meetings between chief negotiators outside of the formal sessions
C.
off-the-record contacts between key subordinates
D.
all of the above
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