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【单选题】
下列对维生素B理化性质的叙述，错误的是（）A.
所有维生素中最不稳定者之一
B.
溶于甘油
C.
在碱性条件下不稳定
D.
氧化剂或还原剂都可以使其失去活性
E.
亚硫酸盐不易引起维生素B1破坏
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反馈参考答案：
举一反三
【多选题】An essay usually consists of ________.
A.
an introductory paragraph
B.
a main body
C.
a concluding paragraph
【单选题】临床上按摩颈动脉窦治疗阵发性室上性心动过速的直接作用是
A.
心交感神经冲动增多
B.
交感缩血管纤维冲动增多
C.
心迷走神经冲动增多
D.
窦神经冲动减少
E.
交感舒血管纤维冲动增多
【单选题】This essay tells us that______.
A.
people usually dream in a NREM sleep
B.
people usually dream in an REM sleep
C.
people always remember what they have dreamed in an REM sleep
D.
people may have an REM sheep all night through
【多选题】An argumentative essay usually includes ________.
A.
A thesis statement.
B.
Transitions.
C.
Body paragraphs.
D.
Evidentail support.
E.
Conclusion.
【单选题】This essay tells us that
A.
people usually dream in a NREM sleep.
B.
people usually dream in an REM sleep.
C.
people always remember what they have dreamed in an REM sleep.
D.
people may have an REM sleep all night through.
【简答题】支出法核算GDP,就是从??出发,把??加总而计算出的该年内生产的最终产品的市场价值。
【简答题】Applicants are usually better off if they can write an essay that distinguishes them from the rest.
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