下列物质性质与其用途不匹配的是( )
氮气的化学性质稳定,常用作保护气
干冰易升华,常用于人工降雨
一氧化碳可燃,可用于冶炼金属
熟石灰显碱性,常用于改良酸性土壤
____ a nice girl! A.How B. What C. Who
Look! This is a ____ robot! A.singB. singing C. sings
I want ____ a new book. A.buyB. buying C. to buy
选出与所给单词同类的一项。(12分) (1)scienceA. musicB. send (2)hospitalA. houseB. museum (3)leftA. mapB. right (4)nearA. behindB. shop (5)cityA. cinemaB. village (6)whereA. helpB. what
Are there tall buildings in the city ? A.aB.someC.any