丘吉尔在谈及自己参加某次会议的感受时说：“我的一边坐着巨大的俄国熊，另一边坐着巨大的北美野牛，中间坐着的是一头可怜的英国小毛驴。”下列各项与他所述会议的内容有关的是（　　）

听短文，在短文中填写所缺单词
    Tom is a____boy. He is eleven years old. He's two years younger than his____, Jim. Tom is 150cm and Jim is 160cm. Jim is 50 kilos and Tom is 60 kilos. Tom wants to lose some weight, so he tries not to eat too much____. He also____more exercise than____.
    ____morning he gets up earlier than Jim and he goes____for____minutes. He usually does it after school. After dinner, Tom often goes for a ____, and Jim likes____at home. Now Tom is much____than Jim. Jim thinks he____more exercise now. He and Tom will do exercise tighter.

—I am really struck by your spoken English. You speak so fluently. Have you been abroad?

—Yes. I ______ in London for two years.

阅读下文，回答相关问题。

                                                                                                                  三 峡
        自三峡七百里中，两岸连山，略无阙处；重岩叠嶂，隐天蔽日，自非亭午夜分，不见曦月。
        至于夏水襄陵，沿溯阻绝。或王命急宣，有时朝发白帝，暮到江陵，其间千二百里，虽乘奔御风，不以疾也。
        春冬之时，则素湍绿潭，回清倒影。绝巘多生怪柏，悬泉瀑布，飞漱其间，清荣峻茂，良多趣味。
        每至晴初霜旦，林寒涧肃，常有高猿长啸，属引凄异，空谷传响，哀转久绝。故渔者歌曰：“巴东三峡巫峡长，猿鸣三声泪沾裳！”

下列四组生物中，都属于真核生物的一组是（    ）