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【简答题】
设随机变量X的概率分布律为 X -2 -1 0 1 2 P 0.1 0.2 0.4 0.2 0.1 则Y=2X 2 +1的概率分布律为( )
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【单选题】It is obvious _________ he has known the news and he is very satisfied with the result.
A.
which
B.
that
C.
what
D.
whether
【单选题】Rampart Hospital has total variable costs of 90% of total revenues and fixed costs of $50 million per year. There are 50,000 patient-days estimated for next year. What is the average daily revenue per...
A.
a. $1,000 is the average daily revenue per patient necessary to breakeven.
B.
b. $4,000 is the average daily revenue per patient necessary to breakeven.
C.
c. $250 is the average daily revenue per patient necessary to breakeven.
D.
d. $10,000 is the average daily revenue per patient necessary to breakeven.
【单选题】---- ____________ he has known the good news. ---- ______ is no wonder he is so excited.
A.
It is likely that; It
B.
It is probably that; There
C.
He is likely that; There
D.
He is possible that ; It
【单选题】The average daily volume of foreign exchange trading in all locations in 2013 was approximately equal to
A.
$5,000 billion.
B.
$100 million
C.
$15 million.
D.
$750,000 .
【简答题】简要叙述如何进行脱硫。
【简答题】韩国的饮茶与中国古代饮茶颇为相似,以( )为基本精神。A. 和、静B.清、寂C.简、真 D.雅、礼 B. :A C. 、韩国的饮茶与中国古代饮茶颇为相似,以“和”“静”为基本精神,其含义泛指（ ）A.和敬俭真 D. 和敬雅真 E. 和敬清寂D.清和寂雅
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