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【多选题】
下列有关敏感性分析的说法中 ,正确的是( )。A.
敏感性分析有助于决策者在缺少资料的情况下,提高决策的准确性
B.
敏感性分析可分为单因素敏感性分析和多因素敏感性分析
C.
需要对每个不确定性因素进行敏感性分析
D.
敏感因素可通过临界点来判断,临界点是指项目允许不确定因素向有利方向变化的极限值
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举一反三
【单选题】Call me, write to me, email me; __, let's keep in touch.
A.
over and over
B.
at any rate
C.
in unison
D.
know better than that
【单选题】—I'm a teenager's mother. Sometimes I don't know _____. —Love and understanding.
A.
what my son needs most
B.
what does my son want to get
C.
why my son gets annoyed very often
D.
why does my son get annoyed very often
【单选题】若传热系数 K 满足公式: 1.PNG ,当ao >>ai 时,为了提高 K 值,最有效的途径是( )。
A.
ao 提高
B.
ai提高
C.
ai、ao同时提高
D.
不能确定
【简答题】Water cannot resist(反抗) a pressure(压力) exerted on it in only one direction, the way, for example, a block of steel(钢块) can when it resists being squeezed(挤压) in a vise(台钳).
【单选题】They don’t know what their problems are, so they will first send in trained nurses to ______ the needs of each patient.
A.
guess
B.
look
C.
evaluate
D.
examine
【单选题】Call me, write to me, email me; , let's keep in touch.
A.
on any rate
B.
from any rate
C.
to any rate
D.
at any rate
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