对心脏、呼吸骤停的伤员，要求紧急黄金急救的（） A.4分钟 B.14分钟 C

In low-speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high-speed networks, this approach often works poorly, because in the (71) between sending the notification and notification arriving at the source thousands of additional (72) may arrive．InATMnetwork，amajortoolfor preventing (73) is (74) control. When ahostwants a new virtual (75) , it must describe the traffic to be offered and the service expected.

A．path

B．rout

C．circuit

D．way

排球教学方法

句子翻译。

1.上个星期天的这个时候你在干什么？

What _____ you_____ at this time last Sunday?

2.我的母亲做饭时我在写家庭作业。

My mother _____ _____ _____ I _____ _____ my homework.

3.穿红色的衣服让你更加容易采取行动。

Wearing red _____ it _____ for you _____ take action.

4.我今天忘记带家庭作业了。

I _____ _____ _____ my homework today.

5. 汤姆现在处于困境。  

Tom is in a difficult _____ at _____.

6.你能给我们带一些干净的饮用水吗？

Can you carry some _____ _____ _____ for us?

7. 我家附近有一个大型购物中心。 

There is a big _____ _____ near my home.

向获奖的科学家学习，我们青少年应[     ]

①努力学习科学文化知识，提高自身素质

②明确社会责任，树立远大理想

③把成为科学家作为个人的惟一职业理想

④积极参加社会实践，培养创新的兴趣和好奇心 

A．①③④

B．①②③

C．①②④

D．②③④ 

一肺炎合并休克患者，治疗后血压96/66mmHg，脉搏6次/分，中心静脉压14cmH₂O，尿比重1.014，尿量15mL/h，尿钠40mmol/L，肺毛细血管楔压12mmHg，可能为（）

A.电解质紊乱

B.心衰

C.血容量不足

D.急性肾功能衰竭

E.休克基本纠正，无合并症