ACTH是指()
A．促肾上腺皮质激素释放激素
B．促肾上腺皮质激素
C．促甲状腺激素释放激素
D．促甲状腺激素
E．促性腺激素释放激素
参考答案：B
—What's your sister's name?
—_____. [ ]
A. She's name is Jenny.
B. This is my sister, Jenny.
C. His name is Tom.
D. Her name is Mary Smith.
设总体X服从标准正态分布，(X1，X2，…，X3)为总体的简单样本，
