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【单选题】
有A、B两份不同浓度的同一物质有色溶液,A溶液用1.0cm吸收池,B溶液用3.0cm吸收池,在同一波长下测得的吸光度值相等,则它们的浓度关系为( )
A.
A是B的1/3
B.
A等于B
C.
B是A的3倍
D.
B是A的1/3
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【单选题】血浆胶体渗透压主要有下列哪项形成
A.
球蛋白
B.
白蛋白
C.
氯化钠
D.
纤维蛋白原
E.
氨基酸
【单选题】经过呼吸道吸收的毒物,首先要采取的急救措施是()。
A.
注意呼吸道开放
B.
松开衣领,保持呼吸畅通
C.
脱离现场,呼吸新鲜空气
D.
吸氧,保证氧气供给
【简答题】Charlie was a rich boy who had more toys than you could imagine. His family had a lot of money, and 1 he liked something, they would buy it for him. Then, he had no idea what things cost, and wouldn't...
【判断题】高位制动灯的简称为E6
A.
正确
B.
错误
【单选题】Charlie had his height and weight_____his favor in the boxing match.
A.
to
B.
for
C.
in
D.
as
【单选题】听力原文:W: Poor Charlie! To be so close to finishing and then not graduate! M: If you had known how he had dealt with his school work, you Wouldn't feel like that. Q: What can be inferred about Charlie? ...
A.
He didn't work hard in school.
B.
He took a part-time job in school.
C.
He had always been serious about study.
D.
He had no interest in social work.
【简答题】If there had been no Charlie Chaplin, the history of world cinema would have been different.
【简答题】一阶系统的在阶跃信号下,超调量为?
【单选题】对血浆渗透压的叙述,下列哪项是不正确的( )。
A.
胶体渗透压主要来自血浆蛋白
B.
晶体渗透压主要来自无机离子
C.
9%NaCl溶液或50%葡萄糖溶液的渗透压与血浆渗透压相近
D.
晶体渗透压对保持红细胞正常形态有重要作用
E.
胶体渗透压对维持血容量有重要作用
【单选题】听力原文:W: Poor Charlie! To be so close to finishing and then not graduate! M: If you had known how he had dealt with his school work, you wouldn't feel like that. Q: What can be inferred about Charlie? ...
A.
He didn't work hard in school.
B.
He took a part-time job in school.
C.
He had always been serious about study.
D.
He had no interest in social work.
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