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【多选题】
下列有关氧化值的叙述中,正确的是
A.
在单质分子中,元素的氧化值为零
B.
H的氧化值总是+1,O的氧化值总是-2
C.
氧化值可以是整数或分数
D.
在多原子分子中,各元素氧化值之和为零
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参考答案:
举一反三
【单选题】Outlines can be derived most easilyfrom __________.
A.
clustering
B.
freewriting
C.
listing
D.
any brainstorming activity
【多选题】航空货运单的作用有()。
A.
承运人与托运人之间缔结的运输合同的证明
B.
运费收据
C.
保险证明
D.
报关单据
【单选题】Outlines can be derived most easily from __________.
A.
any brainstorming activity
B.
free writing
C.
clustering
D.
listing
【单选题】Outlines can be derived most easily from __________.
A.
freewriting
B.
clustering
C.
listing
D.
any brainstorming activity
【单选题】The mail was delayed for two days because of the snowstorm.
A.
held on
B.
held up
C.
held down
D.
held off
【单选题】【C14】
A.
categories
B.
catalogues
C.
versions
D.
outlines
【简答题】A.clarifies B.classifies C.defines D.outlines
【简答题】Title: Challenge Your composition should be based on the outlines below. Outlines: (1) Everyone meets with challenges now and then. (2) Different men treat challenges differently. (3) How I think we s...
【单选题】【C14】
A.
designs
B.
programs
C.
plots
D.
outlines
【单选题】This book and the program it outlines can provide you with the opportunity to succeed ______ your wildest dreams.
A.
on
B.
over
C.
beyond
D.
than
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