将某聚合物2.5 g溶于100.0 mL水中,在20℃时测得的渗透压为101.325Pa。已知R=8.314 kPa.L.mol-1.K-1,该聚合物的摩尔质量是()。
A. 6.0×102g.mol-1
B. 4.2×104g.mol-1
C. 6.0×105g.mol-1
D. 2.1×106g.mol-1
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某独立矿山2011年5月到外地收购未税铁矿石5万吨,该5万吨铁矿石适用()。
A. 本单位应税产品的单位税额
B. 矿产品原产地的单位税额
C. 矿产品收购地的单位税额
D. 税务机关核定的单位税额
中国公民唐某2011年7月取得的下列收入中,可以直接按所取得收入为应纳税所得额计算缴纳个人所得税的项目是()。
A. 工资薪金收入1万元
B. 房屋出租收入5000元
C. 发表小说取得报酬3000元
D. 体育彩票中奖收入2万元
Woman: I met Tom the other day. You know what, he has cut his long hair. It seems that he
An authority-respecter.
B. A renowned person.
C. A criminal.
D. A problem person.
Woman: Kate always stays in her own world and lives in a dream. Man: I don't think she can
A. She is not satisfied with her life.
B. She isolates herself from the outside world.
C. She can find a peaceful life only in her dreams.
D. She can't be at peace with others.