A:y=3x-4
B:y=-3x+2
C:y=-4x+3
D:y=4x-5
--Yes, I'm still wondering how I can go there.
—As we know it's difficult to live in a foreign country.
—________ if you can't understand the language there.
①经济技术合作,主要由市场机制驱动,在平等互利、优势互补的基础上开展双向合作
②承认多样性,强调灵活性、渐进性和开放性
③遵循相互尊重、平等互利、协商一致、自主自愿的原则
④单边行动与集体行动相结合
⑤贸易和投资自由化、便利化