A:科学研究
B:探亲访友
C:猎奇探险
D:娱乐消遣
看图,给下列图片选择合适的句子或对话。
① ____ A. I have a new dress.
② ____ B. Look at my sweater. It's nice.
③ ____ C. My trousers are too long.
④ ____D. Look at his shirt. It's nice.
⑤ ____ E. In winter, I need a warm coat.
下列图形是正方体展开图的是( )
成熟的植物细胞中的____,含有细胞液,与细胞的吸水和失水有关.