均数和标准差可全面描述（）资料的分布特征。
A.正态分布
B.左偏态分布
C.右偏态分布
D.任何计量资料分布
E.计数资料
参考答案：A
The students in Grade Nine their homework for more than three hours every day,
so they _ have any time to play. [ ]
A. were made to do, hardly
B. are made to do, hardly
C. were made do, hardly
D. are made do, hardly
根据我国法律规定，采取下列解决纠纷可以获得具有强制执行效力的结果的有( )。
A．和解
B．调解
C．仲裁
D．诉讼
E．申诉
