先天性肥厚性幽门狭窄患儿的呕吐为A．胆汁样液 B．无进行性加重 C．喷射样 D．粪便

环境污染的概念是（）

A.污染物质使环境的构成或状态发生了变化

B.污染物质扰乱和破坏了生态系统

C.污染物影响了人们正常生活的条件

D.污染物危害了人体健康

E.以上都是

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。学科&网

Hundreds of people have formed impressions of you through that little device(装置) on your desk. And they’ve never actually   41   you. Everything they know about you   42   through this device, sometimes from hundreds of miles away.   43   they feel they can know you   44   from the sound of your voice. That’s how powerful the   45   is.

Powerful, yes, but not always   46  . For years I dealt with my travel agent only by phone. Rani, my faceless agent whom I’d never met   47  , got me rock-bottom prices on airfares, cars, and hotels. But her cold voice really   48   me. I sometimes wished to   49   another agent.

One morning, I had to   50   an immediate flight home for a family emergency. I ran into Rani’s office   51  . The woman sitting at the desk,   52   my madness, sympathetically jumped up. She gave me a   53   smile, nodded while listening patiently, and then printed out the   54   immediately. “What a wonderful lady!” I thought.

Rushing out   55   I called out over my shoulder, “By the way, what’s your name?” “I’m Rani,” she said. I turned around and saw a   56   woman with a big smile on her face waving to wish me a safe trip. I was   57  ! Why had I thought she was cold? Rani was, well, so   58  .

Sitting back in the car on the way to the airport, I figured it all out. Rani’s   59  ---her warm smile, her nods, her ‘I’m here for you’   60  ---were all silent signals that didn’t travel through wires.

48（）

A. annoyed

B. interested

C. discouraged

D. confused

下列管理信息系统建设环境分析的描述中，不正确的是( )。

A．环境分析必须认真细致，不放过每一个细微枝节

B．内部环境分析的重要内容之一是最高领导层的理解和认识

C．外部环境主要是企业的生存环境

D．环境分析有利于确定信息系统的规模、投资等方案

影响全口义齿在口腔中固位的有关因素除外

A．颌骨的解剖形态

B．唾液的质和量

C．基托的边缘伸展范围、厚薄和形状

D．合理的排牙

E．口腔黏膜的性质

病态怀旧心理：总是沉溺于对过去的追忆，不厌其烦地重复叙述往事和过去的环境、条件。 下列不属于病态怀旧心理的是( )。

A．小张换了新单位之后，总是抱怨现状，总是说原单位多么多么好

B．依恋过去的经历，过分看重过去的功勋，把所获得的奖状、勋章、奖品保存得完美无缺，时常回忆当年那些辉煌的经历

C．依恋过去的友人，难以结交新朋友，个人交际圈难以扩大

D．独在异乡为异客，每逢佳节倍思亲