A:It; when; before
B:It; until; that
C:That; after; that
D:This; when; after
小明患有夜盲症,小刚患有脚气病.他们缺乏的维生素分别是( )
如图所示的瓶子内装有正在萌发的种子,24小时后,把点燃的蜡烛放入瓶中,蜡烛熄灭,其原因是( )
鹧鸪天
秦观
枝上流莺和泪闻,新啼痕间旧啼痕。一春鱼鸟无消息,千里关山劳梦魂。
无一语,对芳尊①。安排②肠断到黄昏。甫能③炙得灯儿了,雨打梨花深闭门。
【注】①尊:通“樽”。②安排:听任。③甫能:宋时方言,刚刚,才。
They're trying their best to enough money to build a school for the poor children.