采几片红色苋菜叶放入盛有少量清水的烧杯中,加热至沸,可见杯中的水变成了红色。这种红色的色素主要来自苋菜细胞的[ ]
A.细胞膜
B.细胞质
C.细胞核
D.液泡
D
There is much chance_________ Bill will recover from his injury in the time for the race. [ ]
A that
B. which
C.until
D.if
党员领导干部可以经批准用公款或者通过摊派方式举办各类庆典活动。