如图，在△ABD中，∠D=90°，AC是角平分线，CD=2cm，则△ABC的AB

温 * * 强调，要大力发展先进文化，弘扬民族精神和时代精神。这是因为 [ ]

A、物质决定意识

B、正确意识是促进客观事物发展的决定因素

C、正确意识对客观事物的发展具有促进作用

D、意识在认识世界和改造世界中起决定作用

患儿男，2岁。1个月来食欲减退、消瘦伴乏力，近2周低热、盗汗、干咳。2个月前曾患麻疹。查体：消瘦，未见卡疤，颈部可及数个肿大淋巴结，质硬、无明显压痛，心无异常，右肺可闻及少许干湿啰音，肝肋下3cm，脾不大。

为确诊，首选的检查是（）

A.血常规

B.胸部X线片

C.淋巴结活检

D.肺炎支原体抗体检测

E.EBV特异性抗体检测

请认真阅读下面短文，并根据各题所给首字母的提示，写出一个合适的英语单词完整、正确的形式，使短文通顺。

You’re standing with your classmates. E  66 ___  is talking except you. Perhaps you’re afraid they will laugh at when you say. Maybe you just aren’t b  67  enough to speak. Shyness is like a snake that crawls（爬进）into our mouth and s  68  us speaking. But we shouldn’t let it stay there.

I am 29 years old. Even today, that snake still sometimes v  69  me. When I was in high school, I was so shy that I wouldn’t talk to anyone except my parents and best friends. If a stranger asked me the w  70  to a local shop, it was as if I’d forgotten how to talk. One summer, I got a j  71  in a restaurant and that helped a lot. It meant I had to talk to customers（顾客）. I had to tell them how m  72 their meal cost. I had to ask them if they want to drink Coke or Sprite.

This job taught me how to speak with people. You may be too young to find a part-time job. But you can look for other c  73  to speak with people. You can offer to help an old woman carry her heavy bag. O  74  you can go to get a newspaper for your family. If you do these things for a while, the ‘shyness’ snake will soon begin to l  75  you alone. It’ll look for another mouth to crawl into.

一台1151压力变送器测量变送器测量范围为-3000帕~3000帕，试求当压力为1500帕时输出电流？

搜救雷达应答器在遇险时由人工启动才能使用。（）