关木通的药用部位属于( )
A．茎木类B．花类C．全草类D．根及根茎类E．皮类
参考答案：A
She was supposed ______ at home at the moment, but her mother found her in the park.
A．to be reading
B．read
C．reading
D．to have read
简述现场出现治安案件时的处理流程。
