期货从业人员有下列（）行为，且情节严重的，撤销其期货从业资格并在3年内或永久性拒绝受

在数轴上，点A、B分别表示-5和2，则线段AB的长度是______．

女性，诊断为桥本甲状腺炎，体征上与甲状腺癌鉴别点是（）

A.甲状腺是否有血管杂音

B.甲状腺是否结节性肿大

C.甲状腺的大小

D.甲状腺的质地

E.是否触及颈总动脉搏动

一位班主任老师的教学日记我班的一位同学是从二年级直接升入四年级的跳级生，跳班后，仍是班内学习的尖子，区里的几次数学比赛他都取得了较好的名次。这个孩子聪明、性格内向、深沉，但却有些傲慢，常常看不起人。上课时谁要是答不上问题来，他总是轻蔑一笑，并且显出极不耐烦的神情。我曾想过当场点名批评他，后来改变了主意。一次放学后，我留下了他，对他说：“这学期我们共学过多少形容笑的词语？”他想了想说：“微笑、大笑、狂笑、冷笑、耻笑、讥笑，还有哈哈大笑。”我说：“同学在复述课文时，我看见你笑了，是吗？”他点了点头。我又继续说：“你看用哪个词形容你当时的笑合适呢？”他很敏感，脸红了，低声说：“讥笑，耻笑。”我说：“这两个词是什么意思？”他说：“由于看不起人而笑话人。”我说：“是呀，尊重别人是应该有的道德风尚，虚心才能使你进步得更快。”从此以后，他常常主动帮助后进生学习，上学期还被评为学校的“三好学生”。请依上述实例，回答以下问题：

对学生进行德育时，运用此方法应注意哪些方面的要求？

阅读理解

     One in five US teenagers have some degree of hearing loss, according to researchers who said the

problem is growing."Teenagers really underestimate how much noise they are exposed to" Dr Josef

Shargorodsky said.__①__

     The study, published in the Journal of the American Medical Association, compared national

surveys between the early 1990s and the mid2000s.In the first survey, about 15 percent of teenagers

had some degree of hearing loss.__②__Most of the hearing loss was in one ear only.While it was

usually slight, one in 20 adolescents had more pronounced (显著的) problems-up 50 percent since

the first survey.

     Hearing loss is very common in the elderly, Grimes said, but she added that it was concerning to

see it come into the younger age groups.In babies and young children, hearing problems are known

to delay language development, which in turn influences performance in other areas.Slight hearing loss,

for instance, makes it difficult to distinguish between highfrequency consonants like "s" and "f"

     __③__The science is less clear for adolescents, but it is easy to imagine how being hard of hearing

could influence learning, said Grimes."We know from a lot of data that noisy classrooms are one of the

biggest challenges to learning."

     The reasons for the rise are still uncertain.When asked about noise exposure-on the job, from

firearms or recreational activities, for instance-the teenagers didn't indicate any change.But

Shargorodsky said, "We knew from before that it is difficult to ask this age group about noise

exposure-they underestimate it."__④__Although it's not clear that these devices are to blame,

Grimes said it was still a good idea to turn down the volume.But she pointed out the advice would

likely fall on deaf ears.She said the American Academy of Hearing had also contacted Steve Jobs,

the CEO of Apple, about adding a volume limiter on iPods, but never heard back.

1. In which place should the sentence "Few people would call it noise when they listen

    to music on their MP3 players, for instance." be put?

A. ①  

B. ②  

C. ③  

D. ④

2. What's the main idea of the third paragraph?

A. Hearing loss was very common in the elderly in the country.

B. The sounds like "s" and "f" are hard to distinguish by babies.

C. The number of teenagers with hearing problems is decreasing.

D. Babies and teenagers are also facing problems of hearing loss.

3. Which of the following is TRUE?

A. The reasons of the hearing loss are known to the researchers.

B. The surveys have been carried out for at most 15 years.

C. The reasons for the rise are clear to the researchers.

D. The results of the surveys have been published in a newspaper.

4. The American Academy of Hearing contacted the CEO of Apple in order to________.

A. share the surveys with the CEO of Apple

B. get more help in finance from the Apple Company

C. remind the company to add a volume limiter on iPods

D. express warning and threat to the CEO of Apple

设想有一个电流分别从两个同名端同时流入，该电流在两个绕组中所产生的磁场方向是相同的，即两个绕组的磁场是相互（）的。