从目前的情况来看，接入网技术采用的媒介有多种，主要可分为4种，即光纤接入、铜线接入、

左心房肥大的心电图诊断包括（）。

A.P波峰距<0.04s

B.P波顶峰有明显切迹或双峰，峰距>0.04s

C.P波时限>0.12s

D.P波电压>0.25mV

E.V1Ptf<0.04mm·s

网上互动交流的迅速发展，让普通网民能够自由表达自己的意愿。与此同时，大量违反社会公德和法律的低俗内容也在网上传播，引发了一系列社会问题。面对这一现状，网民应该（   ）

①自由表达，增强权利意识           ②有序参与，扩大政治权利

③履行义务，弘扬社会正气           ④提高素养，合理表达诉求

A．①②

B．①③

C．②④

D．③④

阅读理解。

     We have met the enemy and he is ours. We bought him at a pet shop. When monkey-pox, a disease usually

found in the African rain forest suddenly turns up in children in the American Midwest. It's hard not to wonder

of the disease that comes from foreign animals is homing in on human beings. "Most of the infections (感染)

we think of as human infections started in other animals." says Stephen Morse, director of the Center for Public

Health Preparedness at Columbia University.

     It's not just that we're going to where the animals are; we're also bringing them closer to us. Popular foreign

pets have brought a whole new disease to this country. A strange illness killed Isaksen's pets and she now thinks

that keeping foreign pets is a bad idea. "I don't think it's fair to have them as pets when we have such a limited

knowledge of them." says Isaksen.

     "Laws allowing these animals to be brought in from deep forest areas without stricter control need changing."

says Peter Schantz. Monkey-pox may be the wake-up call. Researchers believe infected animals may infect their

owners. We know very little about these new diseases. A new bug (病毒) may be kind at first. But it may

develop into something harmful (有害的). Monkey-pox doesn't look a major infectious disease. But it is not

impossible to pass the disease from person to person.

1. We learn from Paragraph l that the pet sold at the shop may _____. [ ]

A. come from Columbia

B. prevent us from being infected

C. enjoy being with children

D. suffer from monkey-pox

2. Why did Isaksen advise people not to have foreign pets? [ ]

A. They attack human beings.

B. We need to study native animals.

C. They can't live out of the rain forest.

D. We do not know much about them yet.

3. What does she phrase "the wake-up call" in paragraph 3 most probably mean? [ ]

A. a new disease

B. a clear warning

C. a dangerous animal

D. a morning call

4. The text suggests that in the future we _____. [ ]

A. may have to fight against more new diseases

B. may easily get infected by diseases from dogs

C. should not be allowed to have pets

D. should stop buying pests from Africa

糖尿病专科护士向病区的糖尿病患者做健康宣教时，告诉患者，糖尿病患者常合并眼部疾病及肾脏病变，原因是

A．小动脉病变
B．主动脉病变
C．微血管病变
D．小静脉病变
E．深静脉病变

其他条件不变的情况下，真空度下降时，减压塔（）。

A、塔底液面下降

B、塔底液面上升

C、侧线抽出温度上升

D、侧线抽出温度下降