多样本秩和检验选
A.计量资料B.计数资料C.对称分布资料D.等级资料E.非对称分布资料
参考答案:D
根据首字母或所给中文提示,写出正确的单词完成句子。
1. With exams only a week away, I am under a lot of s________.
2. Young people should be physical and ________(精神)health.
3. The forms of poems I liked best conveyed their meaning by using the b________ minimum of words.
4. Our aim is to further s________ the friendship between the two countries.
5. If he had ________ smoking, he would not have got the cancer at his early age.
如图,AD是△ABC的角平分线,EF是AD的垂直平分线. 求证:
(1)∠EAD=∠EDA.
(2)DF∥AC.
(3)∠EAC=∠B.