属于烟草专卖许可证法律效力的是（）。A、证明力 B、约束力 C、确定力 D、推定力

让竖直悬挂的泡沫塑料球接触音叉，当敲击一下音叉后，发现音叉发出声音，同时泡沫塑料球被音叉撞击而不断弹起这个现象说明发声的音叉在________。

（8分）泡沫灭火剂包括溶液（约1mol/L）、溶液（约1mol/L）及发泡剂．使用时发生的化学反应方程式是__________________________．溶液和溶液的体积比约是____________．若用等体积、等浓度（mol/L）的代替液，在使用时喷不出泡沫，这是因为__________________________．

　　泡沫灭火器内的玻璃筒里盛硫酸铝溶液，铁筒里盛碳酸氢　钠溶液，不能把硫酸铝溶液盛在铁筒里的原因是___________________________________．

根据反不正当竞争法律制度的规定，下列各项中，属于侵犯商业秘密的行为有( )。

A．甲披露自己以偷盗手段获取的A企业的商业秘密

B．乙披露甲以偷盗手段获取的A企业的商业秘密

C．甲允许丙使用自己以偷盗手段获取的A企业的商业秘密

D．丁明知甲以偷盗手段获取A企业的商业秘密，披露该商业秘密

蛇串疮的发病机制中其中一项主要是（）

A.情志内伤，肝气郁结，久而化火，肝经火毒，外溢皮肤而发

B.热邪伤津，阴虚内热所致

C.外感风热之毒，阻于肺胃二经，蕴蒸肌肤而发

D.内有血热，外感风热，内外合邪，凝滞肌肤

E.禀赋不耐，邪毒内侵所致

语法填空

     One evening, I came across one of son's papers with a  failing grade.I almost started to yell his name    1   I suddenly  remembered he was in bed asleep.It was his   2    (nine)  year of school and his

academic career seemed to be in ruins, so  I was angry.But I put the paper aside and turned to the   3    

one, at the top of which were written "My dad".It was a poem   about me,   4   included the time I had to

leave work to take him to the hospital because he    5   (break) his finger.So careless was I   6   I had

forgotten all about that.He talked about how I wrestled with him in the evenings and    7   good many

other things.That paper was suddenly not nearly as  important as it had been a few minutes    8  .I don't

know if he planted the poem next to the failing grade to    9   (soft) the blow, but it worked.Instead of a

severe lecture, I talked to him about the poem as well as the failed homework, and it began to make

sense to me that I could include praise along   10   constructive criticism.