A:④一腺嘌呤
B:①一腺嘌呤核糖核苷酸
C:②一腺苷
D:③一腺嘌呤脱氧核苷酸
都江堰水利工程位于( )
Shenzhen was not prepared for the heavy rains which caused deaths and disasters in May, 2014.