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【单选题】
Which is the most abundant circulating form of vitamin D and the commonly used index for assessing vitamin D status?
A.
25-(OH)D
B.
Vitamin Ds
C.
Vitamin D,
D.
1,25-(OH)2D
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参考答案:
举一反三
【单选题】红外光谱属于
A.
原子吸收光谱
B.
分子吸收光谱
C.
电子光谱
D.
核磁共振谱
【单选题】红外光谱属于
A.
原子吸收光谱
B.
分子吸收光谱
C.
电子光谱
D.
磁共振普
【判断题】表注是统计表必要的组成部分
A.
正确
B.
错误
【判断题】紫外光谱属于电子光谱,而红外光谱属于分子光谱,故紫外光谱的专属性强。()
A.
正确
B.
错误
【单选题】As a great innovator in American literature, Walt Whitman wrote his poetry in an unconventional style which is now called free verse, that is _________.
A.
lyrical poetry with chanting refrains
B.
poetry without a fixed beat or regular rhyme scheme
C.
poetry without rhymes at the end of the lines but with a fixed beat
D.
poetry in an irregular metric form and expressing noble feelings
【单选题】按连续介质概念,流体质点是指
A.
流体的分子
B.
流体内的固体颗粒
C.
空间几何点
D.
微观上看由大量分子组成,宏观上看只占据一个空间点的流体团
【单选题】按连续介质概念,流体质点是指
A.
流体的分子
B.
流体内的固体颗粒
C.
几何的点
D.
几何尺寸同流动空间相比是极小量,又含有大量分子的微元体
【单选题】______ is one of the popular activities for the first two days of the Water Splashing Festival?
A.
Chanting Buddhist scripture
B.
Dragon boat race
C.
Bathing the Buddha
D.
Splashing water
【单选题】Students can learn about of music by speaking, chanting, singing, dancing, acting and playing instrument.
A.
texture
B.
melody
C.
rhythm
D.
All of the above
【单选题】As a great innovator in American literature, Walt Whitman wrote his poetry in an unconventional style which is now called _______; that is _______.( )
A.
hymn...poetry with chanting refrains
B.
blank verse...poetry without rhymes at the end of the lines but with a fixed beat
C.
free verse...poetry without a fixed beat or regular rhyme scheme
D.
ode...poetry in an irregular metric form and expressing noble feelings
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