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【多选题】
单位成本(元)依产量(千件)变化的回归方程为y=78-2x，这表示( )。A.
产量为1000件时，单位成本76元
B.
产量为1000件时，单位成本78元
C.
产量每增加1000件时，单位成本下降2元
D.
产量每增加1000件时，单位成本下降78元
E.
当单位成本为72，产量为3000件
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皮皮学刷刷变学霸
举一反三
【单选题】I dreamed that Bill Gates _______ money ______ me last night.
A.
lent; from
B.
borrowed; from
C.
lend; to
【单选题】From the passage, we learn that of the four candidates (Ford, Sloan, Watson and Gates), only Gates is still alive to see who is chosen the Businessman of the Century.
A.
Y
B.
N
C.
NG
【单选题】For ages, Bill Gates has been supporting educational programmes that ______from kindergartens to universities.
A.
range
B.
move
C.
vary
D.
spread
【简答题】Why there are five gates from the north but there are only three gates from the south?
【单选题】From Gates's mention of W. E.B.Du Bois and Malcolm X we can infer that ______.
A.
Gates is reluctant to take the latter as his ancestor
B.
Gates regards the former as more successful than the latter
C.
Gates remains a follower of the former instead of the latter
D.
Gates claims to have a similar career to that of the former
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