This is a question about phsics.一烧杯中盛满了水,现将一块石子放入水中,水对容器底的压强（）A)不变 B)变大 C)变小 D)无法确定我这个人理解能力比较差.所以麻烦大家对各个步骤对解释清楚,小雨

这个问题好翻译：This question is good.还是This is a good question? no question is a question to be or not to be ,This is a question. if this is question ,please give me a answer To be it not to be ,this is a question. why?why?why?why?this is a question. this is a question difficult to answer对吗为什么不是this is a difficult question to answer 英语选择 “Whis is this?”is a （ ） A.answer B.question C.number D.book What letter is a question? What letter is a question? What letter is a question? which letter is a question? Which letter is a question? Which letter is a question? it is a question~急 What letter is a question? What letetr is a question? This is a hard question to answer.这个不定式为什么用主动式This is a hard question to answer.这个不定式为什么用主动式