《灵枢·营卫生会》论述营气与卫气的相同点在于（） A.盛衰 B.运行 C.分布 D.

眼内铜性异物常表现在角膜后弹力层棕黄色色素沉着，有时晶体前囊呈葵花状混浊，称为铜屑沉着症。

以下关于备用信用证的说法不正确的是（）

A．开立备用信用证的目的是由开证行向受益人承担第一性的付款责任

B．若申请人未能履约，则由银行负责向受益人赔偿经济损失

C．若申请人按合同规定履行了有关义务，受益人就无需向开证行递交违约声明

D．备用信用证常常是备而不用的文件

Last Sunday I made a visit to some new neighbors down the block. No specific in mind, just an opportunity to sit at the kitchen table, have some tea and chat. As I did so, it occurred to me how rare the Sunday visit has become.

When I was a kid in New Jersey of the 1960s, Sunday visits were routine. Most stores were closed, almost nobody worked, and the highways, as a result, were not desperate steeplechases(障碍赛跑) they have become today. My family normally traveled eight city blocks to the home of my grandmother, where adults would sit on the front porch and chat while we children played hide-and-seek.

The Sunday visit was something to desire strongly. It was the repetition to church, our reward for an hour of devotion, an opportunity to take advantage of the fact that Dad was not at work, we were not in school, and there was no housework that couldn’t wait until Monday. Sunday was, indeed, different from the other days of the week, because everyone seemed to be on the same schedule, which means that there was one day when everyone seemed to have time for everybody else.

Sunday as a day of rest is, or was, so deeply rooted in the culture that it’s surprising to find that, in a short span of time, it has almost entirely lost this association. In my childhood, it was assumed that everyone would either be home or visiting someone else’s home on Sunday. But now the question is, “What do you plan to DO this Sunday?” The answer can range from going to the mall, to participating in a road race, to Montreal for lunch. If one were to respond, “I’m making a Sunday visit to family,” such an answer would feel strange, which sounds like an echo from another era.

I suppose I should be grateful to live in Maine, a state of small towns, abundant land and tight relationships. Even though folks work as hard here as they do anywhere else, the state’s powerfully rural feature still keeps at least remnants(残余部分) of the moral of yesterday’s America, where people had to depend on one another in the face of economic vagaries(反复无常的情况) and a challenging environment.

小题1:The writer’s general impression of the Sunday in the past was a day when＿＿.

A．everyone was paying a visit to some relatives far away

B．everyone seemed to be free for others

C．Dad was not at work while Mom was busy cleaning the house

D．nearly every adult would go to church and children weren’t at school小题2:In the fourth paragraph, the writer compares the response “I’m making a Sunday visit to family” to an echo from another era because_____.

A．people nowadays prefer staying at home on Sunday

B．such answers are rarely heard in our modern society

C．people in the city dislike being disturbed on Sunday

D．visiting someone on Sunday was routine in the past小题3:From the last paragraph we may infer that_____.

A．people in Maine suffer more from economic depression and the changed environment

B．people in Maine have abandoned their tradition and lived an absolutely new life

C．land in Maine is short, thus the relationship between people is tense

D．people in Maine tend to help each other out of necessity小题4:What’s the main idea of the passage?

A．Doing many activities on Sunday is beneficial.

B．We should often travel a long distance to visit some friends and relatives.

C．Nowadays, Sunday has almost lost its association as a day of rest.

D．We should abandon some old tradition.

(5分)阅读下列材料，回答下列问题。

打火机是人们在日常生活中经常使用的一种点火工具。其中一种打火机的主要工作原理是：打火时，按一下打火机，带动齿轮摩擦火石，火石里的金属镧和铈就开始燃烧，迸射出火花，与此同时，保存在打火机里的液体（主要是丁烷）在室温下被汽化释放出来，遇到镧、铈产生的火花燃烧起来，从而完成点火。

（1）可燃物燃烧的两个条件是：    ；     。

（2）根据上述材料判断，金属镧和铈的着火点都        （“较高”或“较低”）；丁烷的沸点        室温（“高于”或“低于”）。

（3）夏天，如果把塑料外壳的打火机放在太阳底下曝晒，常会发生爆炸导致危险，请你分析打火机爆炸的主要原因是   。

饮食护理，下列哪项是错误的( )。

A．督促和协助配餐员分发饭菜
B．观察病人进餐
C．检查治疗、试验饮食实施情况
D．昏迷病人要谨慎喂食，以免食物呛入气管
E．随时征求病人对饮食的意见