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【简答题】
将洁净的Fe、Zn、A、B分别与Cu用导线连结浸在合适的电解质溶液里。实验并记录电压指针的移动电压表的读数如下表所示： 根据以上实验记录，完成以下填空： (1)构成两电极的金属活动性相差越大，电压表的读数越___（填“大”或“小”）。 (2) Zn、A、B三种金属活动性由强到弱的顺序是________。 (3)Cu与A组成的原电池___为负极，此电极反应式为___。 (4)A、B形成合金，露置在潮湿空气中，____先被腐蚀。
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举一反三
【单选题】In the history, it was believed that during Tang Dynasty, Princess Wencheng selected______ as an important part of her trousseau when she married Songtsen Gamp in Tibet.
A.
Junshan Silver Needle Tea
B.
Biluochun Tea
C.
Anxi Tieguanyin Tea
D.
Keemun Black Tea
【单选题】What's the purposes of the team experts to set sail?
A.
Their goal is only to prove the huge wave's existence
B.
They went to study the waves
C.
They wanted to ride one as well as to prove its existence
D.
They get sail just out of fun
【单选题】Green tea, which is unfermented tea, has the most medicinal value and the least caffeine content. Which one of the following tea types does not belong to green tea?
A.
Longjing of the West Lake in Zhejiang province
B.
Biluochun produced in Jiangsu
C.
Maojian produced in Xinyang, Henan
D.
Tieguanyin produced in Anxi, Fujian
【单选题】Which of the following is not of green tea?
A.
Huangshan Maoafeng.
B.
Anxi Tieguanyin.
C.
West Lake Longjing.
D.
Dongting Biluochun.
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