下列过程中发生了化学变化的是 [ ]
A.二氧化碳变成干冰
B.电熨斗通电放出热量
C.汽油挥发
D.用焦炭冶炼
答案:D
There is chicken in the refrigerator. Go and buy some. [ ]
A. few
B. a few
C. little
D. a little
雄蚊虫通过摄取什么为生()
A.植物叶汁
B.血液
C.牛奶
D.矿泉水