皮皮学，免费搜题
登录
搜题
【判断题】
头发的生长周期可分为生长期、退化期、休止期。()A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】以下属于鸟类适应飞翔生活的特征的是( ) A．体呈纺锤型，前肢变为翼 B．具有轻、细、然而坚固的骨骼 C．无论在吸气或呼气时均有新鲜空气进入肺部进行交换 D．直肠很短，不能大量储存粪便 E．多氧血和缺氧血在心脏完全分开，并以完全双循环的路线流经全身各器官组织 F．肾脏很大 G．视觉尤为发达，位听器官发达，嗅觉和味觉均不发达
【简答题】家鸽适于飞行生活的形态结构和生理特点主要表现在以下几个方面： (1)家鸽的身体呈_________ 型，可以减少空气阻力，利于飞行。 (2)飞行器官发达：前肢变成了_________ ，生有几排大型的正羽，胸部有很突出的龙骨突，有发达的_________ ，可牵动两翼完成飞行。 （3）从骨骼看：有的骨很薄，有些骨轻、_______、坚固，有些骨_________，可以减轻身体体重。 （4）从消化看...
【单选题】Part B (10 points) You are going to read a text about different types of friendship, followed by a list of examples. Choose the best example from the list for each numbered subheading. I was thinking ...
A.
They call at inopportune times. They say stupid things. They butt in, they boss you around, they embarrass you in public. They invite themselves over. They take advantage. You've done the best you can, but they need professional help. On top of all this, they love you to death and are convinced they're your best friends on the planet.
B.
They call you up, they listen to your complaints, they celebrate your successes and curse your misfortunes, and you do the same for them in return. They hold out through innumerable crises before concluding that the person you're dating is no good, and even then understand if you ignore their good counsel. They accompany you to a movie with subtitles or to see the diving pig at Aquarena Springs. They feed your cat when you are out of town and pick you up from the air port when you get back.
C.
While so many family relationships are tinged with guilt and obligation, a relationship with a Relative Friend is relatively worry-free. You don't even have to hide your vices from this delightful person. When you slip out Aunt Joan's back door for a cigarette, she is already there.
D.
Your friendship is cemented by jokes about coworkers and thoughtful favors around the office. Did you see Ryan's hair? 'Want half of my bread.' Soon you know the names of his turtles, what he did last Friday night, exactly which model CD player he wants for his birthday. His hand writing is as familiar to you as your own.
E.
But what was it that drove you apart? A misunderstanding, a betrayed confidence, an un-repaid loan, an ill-conceived flirtation. A poor choice of spouse can do in a friendship just like that. Going into business together can be a serious mistake. Time, money, distance, religions: all noted friendship killers. You quit doing drugs, you're not such good friends with your dealer anymore.
F.
Without them, you would never get any mail addressed in handwriting. A Faraway Friend calls late at night, invites you to her wedding, always says she is coming to visit but rarely shows up. An actual visit from a Faraway Friend is a cause for celebration and parties of all kinds. Cigarettes, Ch
【简答题】我国处于海洋地缘战略区和( )地缘战略区交接处。
相关题目：
参考解析：
知识点：
题目纠错 0
发布
