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【单选题】
下列药物中哪个具有酸性，但化学结构中不含羧基（）。A.
吡罗昔康
B.
吲哚美
C.
阿司匹林
D.
布洛芬
E.
双氯芬酸钠
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【单选题】The School Art Festival has set up a stage ______students can show their talents.
A.
which
B.
where
C.
that
D.
when
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【单选题】The set of items that serve as media of exchange clearly includes
A.
demand deposits.
B.
short-term bonds.
C.
credit cards.
D.
All of the above are correct.
【简答题】将 Set 结构转为数组 const items = new Set([1, 2, 3, 4, 5]); const array = Array.from(items); console.log(array)
【单选题】There is something wrong with this bill.Please all the items again.
A.
Add up
B.
set down
C.
put down
D.
look up
【单选题】The _____ is the average value of a set of data items.
A.
mean
B.
median
C.
mode
D.
matrix
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