In Beijing, the average price of a newly-constructed unit dropped to less than 20-thousand yuan per square meter, more than 10 percent lower than the same period last year.
在北京,一个新建单位平均价格降到每平方米低于2万元,比去年同期下降了10%。
Polysaccharides are constructed from monosaccharide unit and their derivatives, and have ten to several thousand units.
多糖是由单糖单位构建成和他们的衍生物,有十到几十个单位。
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