奥斯特瓦尔德表色法用()表示颜色。
A、1个数字两个字母
B、1个字母两个数字
C、3个数字
D、3个字母
参考答案:A
根据句意及汉语提示写出单词
1. You can read the ______(最新的) news in this newspaper.
2. The old man ______(度过) his rest life in this apartment.
3. I think Yao Ming is one of the ______(顶尖的) basketball players in NBA.
4. New York is always the ______(主题) of many movies.
5. There will be a _______(竞赛) among all the teachers next month.
检验某个频数分布是否服从正态分布时需采用:()
A.Z检验
B.t检验
C.χ2检验
D.F检验