涂膜剂
A．氟里昂B．C02压缩气体C．丙二醇D．聚山梨酯80E．胶态二氧化硅
参考答案：E
We couldn’t eat in a restaurant because _____ of us had money with us. [ ]
A. none
B. no one
C. nothing
D. all
为什么要坚持党的社会主义初级阶段基本路线一百年不动摇？
