小儿烧伤面积大于多少均应适当补液()
A.5%
B.10%
C.15%
D.20%
E.25%
参考答案:A
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
一个物体受到三个力的作用而做匀速直线运动,已知其中两个力的大小分别为12N和8N,则第三个力的大小不可能为
A.4N
B. 8N
C. 20N
D.30N