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【判断题】
艳黑:为深黑颜色,是以铁、钴、铬,锰等元素氧化物为混合着色剂,配以熔剂 。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】某女,38岁。心尖搏动位于第6肋间左锁骨中线外6.0cm,胸骨左缘4肋间闻及舒张期叹气样杂音。既往有风湿病史,最可能的诊断是
A.
风湿性二尖瓣狭窄
B.
风湿性二尖瓣关闭不全
C.
风湿性主动脉瓣狭窄
D.
风湿性主动脉瓣关闭不全
E.
室间隔缺损
【单选题】Which is not important during the tablet-pressing process?
A.
the ingredients be dry
B.
the ingredients be powdered
C.
pressing the tablets using as high pressure as possible
D.
the grain size of ingredients be uniform as much as possible
【单选题】Why was Douglas Gentile not surprised by the fact that 42% of US children 8 and younger now have their own tablet devices?
A.
Because he became accustomed to seeing children using smartphones.
B.
Because he was not interested in the effects of media use on children.
C.
Because the percentage was not high compared with that of other countries.
D.
Because he seldom saw children using smartphones.
【单选题】某女38岁。心尖搏动位于第6肋间左锁骨中线外0cm胸骨左缘3、4肋间闻及舒张期叹气样杂音。既往有风湿病史最可能的诊断是
A.
风湿性二尖瓣狭窄
B.
风湿性二尖瓣关闭不全
C.
风湿性主动脉瓣狭窄
D.
风湿性主动脉瓣关闭不全
E.
室间隔缺损
【单选题】___tablet computers like Apple’s iPad just before bed, a research says rencently, can lead to poor night’s sleep.
A.
Using
B.
Used
C.
To use
D.
Use
【单选题】已知某系统的系统函数为H(s),唯一决定该系统单位冲激响应h(t)函数形式的是
A.
H(s)的零点
B.
H(s)的极点
C.
系统的输入信号
D.
系统的输入信号考和H(s)的极点
【单选题】4肋间闻及舒张期叹气样杂音。既往有风湿病史,最可能的诊断是
A.
风湿性二尖瓣狭窄
B.
风湿性二尖瓣关闭不全
C.
风湿性主动脉瓣狭窄
D.
风湿性主动脉瓣关闭不全
E.
室间隔缺损
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