有关自主神经的分布()
A.分布于皮肤
B.分布于骨骼肌
C.分布于平滑肌、心肌、腺体
D.分布于关节
E.分布于骨
参考答案:C
—_____ do you send an e-mail to your cousin?
—Sometimes.[ ]
A. How long
B. How much
C. How often
D. How soon
怎样加工制作一根阀门的阀杆?