下列物理知识的应用事例中，叙述错误的是（　　）

照样子写词语

①不紧不慢     ____    ____    ____

②高高兴兴     ____    ____    ____

根据短文理解，回答下列问题。
Cyber Boy   5-26-2013   2:15 pm
    Hi, I'm planning a trip to Europe this summer. I haven't decided where to go yet, but I'd like to experience Britain and France. And I don't want to spend too much money. Any ideas?
Esperanto   5-26-2013   2:23pm
     I had a tour to Britain last year. It's a very nice place. I had a great time there. If you get a chance, visit Stratford. That's the town where Shakespeare lived.
Yoshi   5-26-2013   2:28 pm
    First you should make sure what you want to do there. Each country in Europe has so much to see. Are you interested in museums and castles（城堡）? Or do you want to get to know anything modem?
Cyber Boy    5-26-2013   3:02 pm
    Yoshi -- Good question. I'd like to see some museums, but I also want to try some of French famous food, and a castle would also be great.
Yoshi   5-26-2013   3:21 pm
    I think an English-France-Germany trip might work well for you. You can do a little bit of everything. That's wonderful.
Esperanto   5-26-2013   3:38pm 
    It's easier to say than to do. It will need a lot of money and take time. Cyber Boy isn't so rich. I think he'd better go to France first this time and he is still able to travel to England or Germany in the future if possible.
Yoshi   5-26-2013   3:54pm
     Esperanto --That sounds OK. But I'm not sure if he will have another trip to Europe.

正在认真学习的你，突然听到老师喊你的名字，听到老师的声音，需要以下结构参与，请你选出听觉形成的正确顺序（    ）

①听觉神经②听小骨③外耳道④大脑中的一定区域⑤内耳内的听觉感受器⑥鼓膜

下面说法正确的有几项（　　）

①观察花生种子子叶细胞脂肪颗粒时，用体积分数为50%的酒精溶液洗去浮色

②制作洋葱根尖细胞装片时，用体积分数为95%的酒精溶液对解离后的根尖进行漂洗

③采用样方法和标志重捕法可分别调查植物的种群密度和土壤动物的丰富度

④分离叶绿体中的色素时，不同色素随层析液在滤纸上的扩散速度不同

⑤显微镜下观察到的质壁分离是指细胞质与细胞壁的分开

⑥探究酵母菌细胞呼吸方式的实验中用溴麝香草酚蓝检测酒精的产生

⑦番茄含有丰富的葡萄糖和果糖，常用作还原糖鉴定的材料．