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【单选题】
某物质可发生如下反应：2X+2H 2 O=4KOH+O 2 ↑，则物质X应为（ ）A.
KO
B.
K 2 O
C.
K 2 O 2
D.
KO 2
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举一反三
【单选题】Most of them lost their __________ and had __________ money to support their families.
A.
works; little
B.
jobs; a little
C.
jobs; little
D.
work; a little
【单选题】Proteoglycans area. located exclusively at the cell surface.b. glycoproteins that contain glycosaminoglycans. c. highly positively charged.d. located exclusively in the extracellular matri
A.
a
B.
b
C.
c
D.
d
【简答题】仿佛若有光,仿佛的意思
【简答题】Mostof them lost their and had money to support their families.A. works; little B. jobs; a little C. jobs;little D. work; a little
【单选题】Most of them lost their patience ______ the meeting was long and boring.
A.
even though
B.
so that
C.
in that
D.
because of
【简答题】Which of the following arguments is an ad hominem?A. It's true that James blurted out“checkmate”during the , but he wasn't even one of the players, so you must ignore what he said.B. James said“ch...
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