肠溶包衣材料是().
A.聚乙二醇4000
B.棕榈酸甘油酯
C.卡波普
D.乙基纤维素
E.邻苯二甲酸醋酸纤维素
参考答案:E
Nokia, the world's largest mobile phone maker, said that over the first nine months of the year it _____ 23 million handsets in China, an increase of 77 percent _____ the same period a year ago.
A.sold; comparing with
B.has sold; compared to
C.had sold; compared to
D.was selling; compared with
用0、1、2、3、4、5这六个数字,可以组成多少个分别符合下列条件的无重复数字的四位数:
(1)奇数;
(2)偶数;
(3)大于3 125的数.