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【单选题】
在0.10 mol/L H3PO4溶液中,[HPO42-]的值约等于()。A.
Ka2
B.
Ka3
C.
(Ka1 + Ka2)/2
D.
(Ka2 + Ka3)/2
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举一反三
【简答题】2016年全球原奶产量约为 。
【单选题】The number 13 is a special number, ____, I think, that will be hated by the foreigners.
A.
what
B.
it
C.
which
D.
one
【单选题】如果要删除Student数据库中的Information表，则可以使用命令：( )。
A.
DELETE TABLE information
B.
TRUNCATE TABLE information
C.
DROP TABLE information
D.
ALTER TABLE information
【单选题】如果要删除Student数据库中的Information表，可以使用下列哪个命令?一——
A.
ALTER TABLE Information
B.
TRUNCATE TABLE Information
C.
DROP。TABLE Information
D.
DELETE TABLE Information
【单选题】听力原文：M: Do yon think Alien took your earrings? W: Yes, but I think it was a mistake. She'd never have taken them on purpose. She's just absentminded. Q: What does the woman think of Allen? (13)
A.
She thinks Allen is a thief.
B.
She thinks Allen is clever.
C.
She thinks Allen took her earrings by mistake.
D.
She thinks Allen is a suspect.
【简答题】I think by (13) ______________________ and putting a face to it we made it very real,
【单选题】I think you may think that present is a series of process undergoing change ______ better.
A.
for
B.
to
C.
at
D.
by
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