问题
选择题
— _____________ dolls do you have?
— Eight. [ ]
A. How much
B. How many
C. What
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— _____________ dolls do you have?
— Eight. [ ]
A. How much
B. How many
C. What
答案：B
16(HRB400级)，已采取防止锚板弯曲变形的措施。所承受的荷载F作用点位于锚板表面中心，力的作用方向如图所示。