图示桁架中,杆1的轴力影响线是()。

图示对称结构只有两边柱受力

A、外貌

B、性倾向

C、性别表达

D、性别认同

A、browsing the duty-free shooping collection online and make an order in advance

B、the duty-free goods you ordered will be delivered to the flight or the arriving airport.

C、select any duty-free items on the flight and get them inmediately

D、be forbidden to go duty-free shopping on the flight

A、A动物油脂

B、B植物油

C、C人造奶油

D、D磷脂

A、山西

B、陕西

C、河南

D、甘肃

A、nonlinear, warp

B、linear, warp

C、constant, rotate

D、linear, rotate