下列分类单位中，所包含的生物共同特征最多的是：

诗句“两岸猿声啼不住，轻舟已过万重山”中，描写轻舟运动时所选的参照物是（）

There is       old bike under the tree.       old bike is Mr. Zhao's.

    My uncle is a farmer. He has ninety 1trees on his farm. My uncle and my2can't pick(采摘) all the apples in fall(秋天).3 they ask my parents and me to 4 them every year. It's Sunday. My parents don't go to5and I don't go to school. So we'll go to the6. We get up early(早) in the 7 My mother is in 8 old clothes. My father buys many kinds of food for my uncle's 9in a shop. She likes them very much. My uncle and aunt 10 us many apples, too. I like to work on the farm.