治疗阿米巴脓胸,首选药物为()
A.灭滴灵
B.氧氟沙星
C.氟哌酸
D.大扶康
E.庆大霉素
参考答案:A
解析:治疗阿米巴脓胸,首选灭滴灵剂量0.4g,每日3次,连服7天。
在H2O2溶液中加入KI和H2SO4的混合溶液,迅速发生反应,放出大量气体,反应过程可表示如下:①H2O2+2KI+H2SO4=I2+K2SO4+2H2O;②H2O2+I2=2HIO;③H2O2+2HIO=I2+O2↑+2H2O.下列说法正确的是( )
A.H2O2在上述3个反应中均做氧化剂
B.H2O2氧化性强于HIO,还原性弱于I2
C.上述过程中每生成1mol氧气,消耗1mol双氧水
D.在反应后的溶液中加入淀粉,溶液呈现蓝色
下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。
增加:在缺词处加上一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写上修改后的词。
注意:1. 每处错误及其修改均仅限一词。
Today is Mother’s Day. I love mother so much that I’ve done many things for him. In the morning I buy some flowers with my pocket money and put them in a vase. In the afternoon, I went to buy some vegetable and cooked simple but delicious dinner for my family. After the meal, I gave mother a card what I made myself and said “Happy Mother’s Day” to her. Then I told her to pay more attention on her health and not overwork. I also promised to help her to do some housework from today on. Heard the words, mother was moved to tears.
Today is a specially day, warm but meaningful.