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在(x4+
1
x
)10的展开式中常数项为4545（用数字作答）．
答案

Tr+1=

Cr10
(x4)10-r(
1
x
)r=
Cr10
x40-5r要求常数项，

即40-5r=0，

可得r=8代入通项公式可得Tr+1=C108=C102=45

故答案为：45．

单项选择题

有关药品零售企业销售药品的要求的说法，错误的是（）

A.处方经执业药师审核后方可调配

B.对处方所列药品不得擅自更改、代用

C.对有配伍禁忌或者超剂量的处方，一律拒绝调配

D.调配处方后经过核对方可销售
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I don’t really know (11) are needed, but obviously a degree in modern languages or (12) would be very useful. But, a degree in itself probably wouldn’t (13) . It wouldn’t be enough to get you job. It wouldn’t (14) to make an editor decide to (15) . So it’s difficult to define the (16) . You’re going to need (17) and the ability to assimilate information (18) and then produce stories which (19) of the newspaper or radio or television station you (20) .
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