【简答题】Sugar—free beets(甜菜)that still taste sweet, tastier tomatoes and brighter-colored fruits and vegetables that stay ripe(熟的)longer are all foods that are being grown now. How can they carry traits, such...
【单选题】听力原文:M: Well, I just wonder who puts the candies into the boxes? W: It is clone by a machine, which is able to count the candies automatically. Please, this way. I'll show you right away. Q: Where doe...