社会主义民主的本质是全民民主。()
参考答案:错
It's said that they ________ a better life ever since they moved to the US.
A.had enjoyed
B.have been enjoying
C.were enjoying
D.would enjoy
垃圾燃烧后的气体不能用碱溶液吸收的是 [ ]
A. 一氧化碳
B. 二氧化碳
C. 二氧化硫
D. 三氧化硫