It's hard to believe _____ the way out of the forest without the help of the local guide?
A：What they were able to find
B：what were they able to find
C：how they were able to find
D：how were they able to find
20世纪90年代以来，经济领域的全球化速度大大加快，对其出现的原因，下列说
法正确的是（ ）
①两极格局的结束及市场经济被广泛接受
②世贸组织的仲裁使各国不再有经济纠纷
③跨国公司遍布全球起了重大的推动作用
④新型交通和通讯提供了基本的技术手段
