我国十大林业生态体系工程中，被世界各国公认为世界生态工程之最的是[ ] A．三北

犬猫常见的皮肤肿瘤有：皮肤 * * 瘤、脂肪瘤和脂肪肉瘤、（）、皮肤黑色素瘤和血管肿瘤等。

A、皮肤上皮肿瘤

B、皮肤颗粒细胞瘤

C、皮肤鳞状上皮癌

D、皮肤淋巴细胞瘤

房屋权属登记信息的原始登记凭证包括（）。

A.房屋权利登记申请表

B.房屋权利设立、变更、转移、消灭或限制的具体依据

C.房屋权属登记申请人提交的其他资料

D.房屋自然状况

E.房屋权利状况

下列物质含有的分子数不相同的是（　　）

A．1molCO₂和N_A个H₂

B．16克CH₄和6.02×10²³O₂

C．1molHCl和22.4LSO₂（标准状况）

D．在标准状况下，22.4LN₂和14克CO

I have always known my kids use digital communications equipment a lot. But my cellphone bill last month really grabbed my attention. My son had come up to nearly 2,000 incoming text messages, and had sent nearly as many. Of course, he was out of school for the summer and communicating more with friends from a distance. Nevertheless, he found time to keep a summer job and complete a college course in between all that typing with thumb.

I was even more surprised to learn that my son is normal. "Teenagers with cellphones each send and receive 2,272 text messages a month on average, " Nielsen Mobile said.

Some experts regret  that all  that  keyboard jabber(键盘闲聊) is making our  kids stupid, unable to read non-verbal cues such as facial expressions, gestures, posture and other silent signals of mood and attitude. Unlike phones, text messaging doesn't even allow transmission of tone of voice or pauses, says Mark Bauerlein, author called The Dumbest Generation: How the Digital Age Stupefies Young Americans and Jeopardizes Our Future.

Beyond that,  though,  I'm not sure I see as much harm as critics of this trend.  I' ve posted before on how I initially tried to control my kids' texting. But over time, I have seen my son suffer no apparent ill effects, and he gains a big benefit, continuing contact with others.

I don't think texting make kids stupid. It may make them annoying, when they try to text and talk to you at the same time. And it may make them distracted. when buzzing text message interrupt efforts to noodle out a math problem or finish reading for school.

But I don't see texting harming teens' ability to communicate. My son is as accustomed to nonverbal cues as any older members of our family. I have found him more engaged and easier to communicate with from a great distance. because he is constantly available by means of text  message and responds with faithfulness and speed.

小题1:What is Mark Bauerlein ' s attitude to texting?

A．It is convenient for teens to communicate with others.

B．It is likely to cause trouble in understanding each other.

C．It is convenient for teens to text and call at the same time.

D．It will cause damage to the development of teens' intelligence.小题2:What would be the best title for this passage?

A．For Teens, Texting Instead of Talking

B．For Parents, Caring Much for Their Kids

C．Disadvantages of Texting

D．The Effect of Communication小题3:What does the underlined word "distracted" in the fifth paragraph mean?

A．Confused.

B．Absent-minded.

C．Comfortable.

D．Bad-tempered.小题4: The author's attitude to texting is ___________ .

A．objective

B．opposed

C．supportive

D．doubtful小题5:According to the passage,  which of the statements is NOT true?

A．It is normal for a teen to send or receive 60 text messages per day.

B．Texting is a very popular way of communication among teens.

C．The writer limited his son to send or receive messages at first.

D．When texting, teens don't mind talking with you.

自动记账，是对住院过程中，需要定期自动计算费用的项目进行自动记账操作的。