题目内容

为求AgCl的活度积，应设计电池为

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已知电池反应： 2Fe3++ Sn2+＝ 2Fe2++ Sn4+(1) 写出电池表达式及电极反应(2) 已知 f$(Sn4+/Sn2+) = 0.15 V , f$(Fe3+/Fe2+) = 0.771 V计算该电池在 298 K 时的标准电动势

Directions: Now you will hear a news report. At the end of the report, you will hear some questions. After you hear a question, choose the best answer from the four choices. 1. A) Many department stores in the US are in trouble.B) Many department stores have better services now.C) Many department stores have attracted old people.D) Many department stores no longer display luxuries.2. A) Customers don’t have time to go shopping.B) Online shopping only attracts young people.C) Customers spend more time shopping online.D) Customers don’t have money to buy luxuries.3. A) Help customers to save more money.B) Find more interesting styles of clothes.C) Provide a better environment and service.D) Let customers receive their items at home.

inappropriate是？

A. 不合适的
B. 合适的
C. 不确定的
D. 确定的

关于触诊的描述,正确的是:

A. 只适用于腹部
B. 以手掌和手背皮肤最为敏感
C. 多用指腹和掌指关节部掌面的皮肤
D. 使用范围很广,可遍及全身各部,尤以背部最重要
E. 下腹部触诊时,不需要嘱患者排出大小便