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【简答题】
下列测定情况下,水分测定的结果是偏高还是偏低?为什么?直接干燥法:样品粉碎不充分;脂肪的氧化;样品表面结硬皮;干燥器中硅胶已受潮。蒸馏法:冷凝器中残有水滴;馏出了水溶性成分。
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皮皮学刷刷变学霸
举一反三
【单选题】At the sight of the policeman, ____ from behind the door.
A.
did the boy rush out
B.
the boy was rushing out
C.
out rushed the boy
D.
rushing out was the boy
【单选题】下列哪一项是反映血小板收缩功能的物 质
A.
肌动蛋白和肌球蛋白
B.
血小板第 4 因子和血小板球蛋白
C.
血小板促生长因子和凝血酶致敏蛋白
D.
血小板膜磷脂和膜糖蛋白
【单选题】The audience waited until the curtain rose and then ____ laughter at the sight of the funny actor. [ ]
A.
burst into
B.
burst out
C.
broken into
D.
began with
【单选题】At the sight of the scene of war, my _____ race back more than 50 years to the dark days of 1940.
A.
minds
B.
memories
C.
thoughts
D.
brains
【简答题】患者男性，30岁。体温持续升高达39℃以上，但波动幅度大，24小时波动超过1℃，最低体温仍超过正常水平，属于A. 弛张热B. 稽留热C. 间歇热D. 波状热E. 不规则热
【单选题】At the sight of the scene of war, my _____ race back more than 50 years to the dark days of 1940
A.
60. At the sight of the scene of war, my _____ race back more than 50 years to the dark days of 1940. A．minds
B.
memories
C.
thoughts
D.
Brains
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