安装预绞式护线条时，单根预绞丝由一端向另一端缠绕。
参考答案：错
---Our family to Taiwan Island this coming holiday.
---Have a great time!
A．have traveled
B．went traveling
C．are traveling
D．would travel
补骨脂不具有的功效是
A．温脾
B．补肾
C．平喘
D．固精
E．益精
