判断题:人体呼出的气体全部都是二氧化碳。 ( )
I've asked him __________ us for dinner, but he said he was quite busy.
①干扰了公安机关的正常工作
②是积极监督国家机关工作人员是否依法行使权力的体现
③是自觉维护宪法权威的表现
④扰乱了社会秩序