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【单选题】
An individual has been diagnosed with Hartnup disease and is experiencing symptoms consistent with niacin deficiency. In this patient, which amino acid is no longer able to “ spare ” the dietary requirement for niacin?A.
Alanine
B.
Tryptophan
C.
Glutamine
D.
Leucine
E.
Methionine
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【简答题】潍坊风筝博物馆是目前世界上建筑面积最大的风筝专业博物馆。 ( )
【单选题】Although it was not named ______ 1782, this kind of metal was used as early as 5300 B. C.
A.
for
B.
in
C.
until
D.
since
【简答题】图4是英国1782年的一幅漫画。
【单选题】旋转式多冲压片机的特点包括
A.
该机填料方式合理，由上、下冲头相对加压，压力分布均匀
B.
片重差异较小
C.
连续操作、生产效率较高
D.
机器内配有吸风箱，通过吸嘴可吸取机器运转时产生的粉尘
E.
以上都是
【简答题】A．In 1636. B．In 1638. C．In 1836. D．In 1782.
【简答题】Although it was not named ________ 1782, this kind of metal was used as early as 5300B. C. [A]for [B]in [C] until [D] since
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