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【单选题】
下列物质的性质或用途中,与盐类的水解无关的是A.
氯化铵溶液可用于除铁锈
B.
明矾可用于净水
C.
热的纯碱溶液可用于去除油污
D.
饱和硫酸钠溶液可使蛋白质盐析
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皮皮学刷刷变学霸
举一反三
【单选题】A number of recent books have reworked subjects, forms and writing techniques. Today's children read stories about divorce, death, drugs, air pollution, political extremism and violence. Relying on th...
A.
reworded
B.
rewritten
C.
processed
D.
revised
【单选题】A number of recent books have reworked subjects, forms and writing techniques. Today's children read stories about divorce, death, drugs, air pollution, political extremism and violence. Relying on th...
A.
reworded
B.
rewritten
C.
processed
D.
revised
【单选题】Among the most popular books being written today are those which are usually classified as science fiction (科幻 小说). Hundreds of titles are published every year and are read by all kinds of people. Fur...
A.
Science fiction is fairly new in literature.
B.
Science fiction is rather popular with people today.
C.
Science fiction often deals with some forms of ideal society.
D.
Hundreds of books classified as science fiction are printed every year.
【简答题】Children at a school in Italy have today begun an experiment to replace all their books with personal computers. The pupils involved will each be given a special laptop that contains their entire cour...
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