皮肤苔藓样变是皮肤角质层和棘细胞层增厚所致,常见于()。 A.扁平苔藓 B.神经性皮

题型:多项选择题

问题:

皮肤苔藓样变是皮肤角质层和棘细胞层增厚所致,常见于()。

A.扁平苔藓

B.神经性皮炎

C.皮肤淀粉样变

D.体癣

E.蕈样肉芽肿

考点:广东住院医师急诊医学皮肤科皮肤科题库
题型:多项选择题

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(12分)从废钯催化剂(该催化剂的载体为活性炭,杂质元素有铁、镁、铝、硅、铜等)中提取海棉钯(含Pd>99.9%)的部分工艺流程如下:

将最后所得到的滤液,经过一定的操作后可得到海棉钯。

(1)废钯催化剂经烘干后,再在800℃的高温下焙烧,焙烧过程中需通入足量空气的原因是   ▲  ;焙烧时钯转化为氧化钯(PdO),则甲酸还原氧化钯的化学方程式为   ▲  

(2)钯精渣中钯的回收率高低主要取决于王水溶解的操作条件,已知反应温度、反应时间和王水用量对钯回收率的影响如图1~图3所示,则王水溶解钯精渣的适宜条件为   ▲     ▲     ▲  

(3)王水是浓硝酸与浓盐酸按体积比1∶3混合而成的,王水溶解钯精渣的过程中有化合物A和一种无色、有毒气体B生成,并得到滤渣。

①气体B的分子式:   ▲  ;滤渣的主要成分是   ▲  

②经测定,化合物A由3种元素组成,有关元素的质量分数为Pd:42.4%,H:0.8%,则A的化学式为   ▲  

题型:多项选择题

朱砂具有的功效是()

A.平肝潜阳

B.解毒疗疮

C.收敛固涩

D.活血散瘀

E.软坚散结

题型:多项选择题

进行赢得值法参数分析,如果参数的关系为ACWP>BCWP>BCWS、SV>0、CV<0,应采取的措施是( )。

A.抽出部分人员,放慢进度
B.抽出部分人员,增加少量骨干人员
C.增加高效人员投入
D.若偏离不大,维持现状

题型:多项选择题

储蓄存款在()前孳生的利息所得,不征收储蓄存款利息所得个人所得税。

A、1996年2月1日

B、1999年10月31日

C、1997年11月1日

D、1998年11月1日

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