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【多选题】
用硅胶薄层检识糖时,为提高点样量,可在铺板时加入A.
硼酸盐
B.
亚硫酸氢钠
C.
乙酸
D.
硫酸
E.
氢氧化钠
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举一反三
【单选题】Many doctors are still general practitioners, but the tendency is toward specialization in medicine.
A.
rumor
B.
trend
C.
prejudice
D.
security
【单选题】Many of the creatures in the movie Avatar are not real, but much of ________ happens is still attractive. [ ]
A.
which
B.
that
C.
what
D.
them
【简答题】A．The dentistry field is still a man's world. B．There are still not many female dentists owning their practices. C．Most of female dentists are senior partners or employers in a man's business. D．All t...
【单选题】유학은 ______을 모든 도덕을 일관하는 최고 이념으로 삼고, 수신(修身) ·제가(齊家) ·치국(治國) ·평천하(平天下)의 실현을 목표로 하는 일종의 윤리A.인
A.
의
B.
선
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