【题目】We appeal to all countries to __________ cooperation on climate change, food security and the prevention of natural disasters.
A. attach importance to B. lay stress on
C. put value for D. hold up to
在线课程【答案】A
【解析】句意:我们呼吁所有国家在气候变化、粮食安全和自然灾害的预防方面重视合作。attach importance to重视，认为……很重要。