A. 石脑油 B. 天然气 C. 二氧化碳 D. 液态烃
A. Convert 10 to 'TEN' B. Convert '10' to 10 Convert '10' to '10' D. Convert 'TEN' to 10 E. Convert a date to a character expression F. Convert a character expression to a date
A. ①、② B. ①、③ C. ②、③ D. ①、②、③