题目

根据能量来源的不同，主动运输分为下图所示的a、b、c三种类型(图中▲、■、○代表跨膜运输的离子或小分子)。下列叙述错误的是( ) A. 图中的Q侧是细胞质基质 B. 转运Y的能量可能是来自转运X时释放的能量 C. 进行b类型主动运输所需要的能量来自线粒体 D. 进行c类型主动运输的生物有可能是某些细菌 答案：C 用方框中所给单词的适当形式填空，使短文完整(每个单词限用一次) Dear Dad and Mom, 　　I’m writing to you from our hotel in a small town(1)________ Ashland．Sandra and I are on vacation with our son and daughter for a few days．We are happy to be here,(2)________ we are having some problems． 　　The weather isn’t very good．It’s a little(3)________ here than in my home town．Now I’m looking(4)________ of the window and it’s raining cats and dogs．The(5)________ aren’t happy．They are having a bad time and they are sitting on the bed,(6)________ cards and watching TV．Sandra is at the(7)________ now．She’s not feeling quite well today．All the(8)________ hotels are beautiful and new, but ours is old．One of the windows is broken and there is something wrong with the toilet．The food in he restaurant isn’t very good, but very(9)________． 　　As you can see, we are having a few problems here at the town, but we are happy to bi on vacation(10)________ we are happy to be together． Yours, Thomas