The derived terms of FOB are used to clarify _________ responsibility.
A、packing
B、loading
C、 unloading
D、shipping

单项选择题植物细胞较微生物细胞大得多，有纤维素细胞壁．细胞耐拉耐扭，抵抗剪切力强。

单项选择题20 Chirac takes a stand similar to Blair's on Africa and climate changE.A Right B Wrong C Not mentioned