标准正态分布的两个参数值分别是（）。
A.μ＝0，σ＝1
B.μ＝1，σ＝0
C.μ＝1，σ＝-1
D.μ＝-1，σ＝1
E.μ＝0，σ＝0
参考答案：A
句型转换。
1. It's windy in Nanjing now. (就划线部分提问)
_____ _____ Weather _____ in Nanjing now?
2. It often rains in our city. (变为一般疑问句)
_____ it often _____ in your city.
3. There's a lot of clouds today. (改为同义句)
It _____ _____ today.
4. His sister is playing tennis over there. (就划线部分提问)
_____ _____ his sister _____ over there.
5. Susan enjoys running in the morning. (变为疑问句)
_____ Susan _____ _____ in the morning?
