After a long walk in the sun, they wanted to drink .
A:cold something
B:something cold
C:nothing cold
D:cold anything
阅读诗歌,回答问题
江畔独步寻花
杜甫
黄四娘家花满蹊,千朵万朵压枝低。
留连戏蝶时时舞,自在娇莺恰恰啼。
棉农在种植棉花植株时常常进行“掐尖”,其原因是( )