题干
选择 方框中的单词并用其适当形式填空。
story,or,but,talk,write
I think these ____are very interesting.
He can’t play the piano ____ the guitar.
Can Tony ____stories?
Th e students are ____ to each other now.
Tina can speak English ____ she can’t speak Chinese.
答案(点此获取答案解析）
stories,or,write,talking,but
)3溶液V mL中含a g Al3+，取出V/4 mL溶液稀释成4V mL后，SO42－的物质的量浓度为