图中三通管a，b，c需要侧抽芯的数目分别为

A、纬度地带性

B、经度地带性（干湿地带性）

C、垂直地带性

D、非地带性

A、相关系数r

B、回归系数b

C、回归常数a

D、回归估计标准误

A、PRA表示未使用的调节

B、可用正镜放松

C、可用正镜刺激出来

D、是指集合固定下，能放松的调节

A、The schools of Chinese Kung fu are usually named after the mountains where they were born.

B、Shaolin Kung fu is masculine while Wudang Kung fu is feminine.

C、Kongtong School’s dayangong imitates the form of wild geese, functioning to prevent disease and maintain physical health.

D、Emei School was said to be founded by Guo Xiang in the famous novel The Heaven Sword and Dragon Saber.

A、Contact

B、pass pos

C、end point

D、the peak

A、预防为主

B、由外至内

C、以人为本

D、反应迅速