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【单选题】
关于维生素的消化吸收正确的说法是 ( )
A.
水溶性维生素在体内能大量贮存
B.
脂溶性维生素在食物中独立存在
C.
在肠道内的吸收与脂肪密切相关
D.
吸收后的脂溶性维生素主要在脂肪组织内贮存
E.
一旦饱和,过量脂溶性维生素便从尿中排出
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举一反三
【判断题】Both Julie and her mother feel that communicating through correspondance bring them closer.
A.
正确
B.
错误
【单选题】I don't think ______necessary for Julie to make such a fuss about that sort of thing.
A.
her
B.
it
C.
that
D.
this
【判断题】刚体上力是滑动矢量。
A.
正确
B.
错误
【简答题】标出一组平行线. ______组平行线______组平行线.
【简答题】一闪耀光栅刻线数为100条/mm,用λ=600nm的单色平行光垂直入射到光栅平面,若第2级光谱闪耀,闪耀角应为多大?
【简答题】一闪耀光栅刻线数为100条/mm,用λ=600 nm的单色平行光垂直入射到光栅平面,若第二级光谱闪耀,闪耀角应为多大?
【判断题】In her fourth grade, Julie learned that she could obtain what she wanted by writing her mother a powerful note.
A.
正确
B.
错误
【判断题】刚体上的力是滑动矢量。
A.
正确
B.
错误
【判断题】莫尔条纹的方向与光栅刻线方向是相同的。( )
A.
正确
B.
错误
【单选题】According to the section "Source Of Frustration," how does Julie Seaver think that schools should handle the graduation gown issue?
A.
Seaver thinks it would be best to allow students to choose from two colors.
B.
Seaver thinks it would relieve stress for students if graduation gowns didn't exist.
C.
Seaver thinks it would be best to have just one color for the graduation gowns.
D.
Seaver thinks it would relieve stress for students if the schools stuck with tradition.
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