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【单选题】
下面提到的问题中，与盐的水解无关的正确说法是（ ） ①明矾和FeCl 3 可作净水剂 ②为保存FeCl 3 溶液，要在溶液中加少量盐酸 ③实验室配制AlCl 3 溶液时，把它溶在盐酸中，而后加水稀释 ④NH 4 Cl与ZnCl 2 溶液可作焊接中的除锈剂 ⑤实验室盛放Na 2 CO 3 、Na 2 SiO 3 等溶液的试剂瓶应用橡皮塞，而不能用玻璃塞 ⑥用NaHCO 3 与Al 2 （SO 4 ） 3 两种溶液可作泡沫灭火剂 ⑦在NH 4 Cl或AlCl 3 溶液中加入金属镁会产生氢气 ⑧长期使用硫铵，土壤酸性增强；草木灰与铵态氮肥不能混合施用 ⑨比较NH 4 Cl和Na 2 S等溶液中离子浓度的大小或某些盐溶液的酸碱性．A.
①④⑦
B.
②⑤⑧
C.
③⑥⑨
D.
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【单选题】Stephen Schneider, a climatologist at Stanford, notes that unlike greenhouse gases, which ______ rapidly around the globe, the sulfate droplets tend to concentrate over industrialized regions.
A.
unify
B.
fragment
C.
disperse
D.
shatter
【单选题】Which industrialized nations has the shortest school year?
A.
Germany
B.
Japan
C.
France
D.
The U.S.
【简答题】翻译下列句子,注意主从句换位。 Unlike many other industrialized countries, the United States is largely self-sufficient in raw mateirals. Japan and Western Europe, which depend heavily on food imported from the Unit...
【单选题】Why was Britain known as “an empire on which the sun never sets”? Because it used to be the greatest industrialized country in the world.
A.
Because it used to be the largest country in the world.
B.
Because it was once one of the oldest and strongest colonial powers in the world.
C.
Because it had bought a lot of islands around the world.
D.
Because it used to be the greatest industrialized country in the world.
【简答题】Listen to the following sentences and interpret them into Chinese, paying attention to the translation of attributive clauses. 原文: (1) The Kyoto Protocol created the “Clean Development Mechanism” or C...
【单选题】Unaltered folk cultures no longer exist in industrialized countries such as the United States and Canada. Perhaps the nearest modern equivalent in Anglo-America is the Amish, a German American farming...
A.
generally rejects
B.
greatly modifies
C.
loudly declares
D.
often criticizes
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