花架主要是为攀援植物提供生长的支架，其本身造型无须考虑过多。
A、正确
B、错误

单项选择题转录因子AREB参与了植物响应干旱胁迫信号的调节。 A、正确 B、错误

单项选择题A: __________________ B: Thank you. I’m sorry that I haven’t my business card.A. Nice to meet you.B. This is my business card.C. How are you?D. You're welcome.