【单选题】厨房各部分的钥匙,下班后应集中交( )。
【简答题】句型转换。 1. That is a cat. (改为复数形式) _________________________________ 2. There is some water in the cup. (改为疑问句形式) 3. He likes going swimming. (改为否定句形式) 4. This sweater is mine. (改为同义句) 5. These boys are...
【简答题】结合水按照距离固体表面的远近可分为强结合水和弱结合水,其中 的外层可被植物吸收利用。