皮皮学，免费搜题
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【单选题】
下列具有保护皮肤,免受射线损伤的生理功能为A.
胆固醇
B.
亚油酸
C.
饱和脂肪酸
D.
短链脂肪酸
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举一反三
【单选题】强心苷进行强烈酸水解时,苷元结构中的羟基较难发生脱水反应的是( )
A.
C 11 -OH
B.
C 14 -OH
C.
C 5 -βOH
D.
C 4 位有双键的C 3 -OH
【简答题】覆于心血管和淋巴管的单层扁平上皮称为 ,覆于胸膜腔、腹膜腔和心包腔面的上皮称为 。
【简答题】I'm sorry I can't do that. It is the company's .
【简答题】Extensive reading vocabulary: After reading the article, please guess the meanings of the following with the help of the context and other clues.
【单选题】After reading the article, one would refrain from concluding that ______.
A.
optimism reigns in regard to getting Ph.D.dropouts to return to their pursuit of the degree
B.
a Ph.D.dropout, by and large, does not have what it takes to learn the degree
C.
colleges and universities employ a substantial number of Ph.D.dropouts
D.
D.Ph.D.s are not earning what they deserve in nonacademic positions
【单选题】After reading the article, one would refrain from concluding that ______.
A.
optimism reigns in regard to getting Ph.D dropouts to return to their pursuit of the degree
B.
a Ph.D dropout, by and large, does not have what it takes to learn the degree
D.
colleges and universities employ a substantial number of Ph.D dropouts D．Ph. D．'s are not earning what they deserve in nonacademic positions
【单选题】. After reading the article, we can infer that
A.
the UK proposed a carrot and stick approach to the European parliament
B.
all the operators have shown their willingness to cut prices within three years
C.
holidaymakers and business travelers are very concerned with roaming rates
D.
the controversy in paragraph 3 is between the operators and Margaret Hodge
【单选题】After reading the article, one would refrain from concluding that _________.
A.
optimism reigns in regard to getting Ph. D. dropouts to return to their pursuit of the degree
B.
a Ph. D. dropout, by and large, does not have what it takes to learn the degree
C.
colleges and universities employ a substantial number of Ph. D. dropouts
D.
Ph.D.'s are not earning what they deserve in nonacademic positions
【单选题】By reading the article, we know how ______ in our daily life.
A.
will we protect the earth
B.
we can reduce pollution
C.
should we save water
D.
we must recycle things
【单选题】After reading the article, one would refrain from concluding that
A.
optimism reigns in regard to getting Ph. D. dropouts to return to their pursuit of the degree.
B.
a Ph. D. dropout, by and large, does not have what it takes to learn the degree.
C.
colleges and universities employ a substantial number of Ph.
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