It was of you to help others in trouble.
A:important
B:interesting
C:kind
下列各式中是一次函数的是( )
操作顺序为:
①在集气瓶中先装入少量水,然后将余下部分划分为五等分;
②导管A处先用止水夹夹住,再在燃烧匙放少许红磷,点燃后迅速放入集气瓶里,塞紧橡皮塞;
③等燃着的红磷自行熄灭后,振荡集气瓶,使瓶内温度降至室温;
④打开止水夹A,可见烧杯中的水倒流入集气瓶中,
问:
– Hi! Jack. ______ does it take to get from Xiamen to Fuzhou by EMU Train?– Only about one hour and forty minutes.