下列不属于产后感染邪毒发热的主要症候是
A．烦躁口渴
B．小腹疼痛拒按
C．舌紫暗或有瘀斑
D．恶露色紫臭秽
E．高热寒战
参考答案：C
飞轮的内孔表面粗糙度要求Ra6.4μm。
—_______ should we clean the library?
—Twice a week. [ ]
A. How many
B. How much
C. How long
D. How often
