与粘固力大小无关的因素是（） A.粘结材料的种类 B.粘结面积的大小 C.窝洞底平，

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                                                            Table manners in America

    Don't circle your plate with your arms. If you do so, you will become the focus  (焦点)  of the table.

Everyone would wonder, "Is there anything wrong with the food?" This may give a wrong message that

you don't like the food or something like that.

    Don't push the plate back when finished. Leave it where it was. Do you want to let the hostess (女主人)know that you've just done a labour?                                    

    Don't lean (倚靠) back and say "I'm through" or "I'm full". Just put the fork and knife across the plate.

That's all.

    Don't cut up everything before you start to eat. Cut only one or two bites (块) at a time. Never take

a huge mouthful of anything. Do you want to show how hungry you are? Don't do that. It's not so good.

    It's never good to reach across the table for anything. If the thing you want is not at hand, simply ask

the nearest person for help, like "Mrs. Smith, could you pass me the dish?"

1. If you are at table and circle your plate with your arms, other people will think ____.

A. you don't like the food  

B. the food isn't good for you

C. there is something wrong with the food          

D. all above

2. After finishing dinner, you should ______.

A. put the fork and knife across the plate    

B. stand up and leave the table

C. say "I'm full"            

D. say "Thank you"

3. If you want a dish far from you at table, you should _____.

A. stand up and reach across the table for it

B. leave your seat to get it

C. sit there until others help you

D. ask the nearest person for help

患者女，42岁。以"发作性喘息、咳嗽20年，加重2天"为主诉住院。伴有胸闷、心悸，夜间发作明显，影响睡眠，既往有过敏性鼻炎，体检：患者神志清楚，呼吸急促，R25次/分，口唇发绀。两肺满布哮鸣音，心率124次/分，律齐。动脉血气分析提示：PaO₂71mmHg，PaCO₂27mmHg，pH7.31。

危重度哮喘患者的临床表现，下列哪项正确（）

A.胸腹矛盾运动

B.双肺听诊广泛哮鸣音

C.pH值降低

D.脉率>120次/分

E.焦虑、烦躁

F.讲话中断

G.无哮鸣音

隧道内常用的防水材料是（）。

A、沥青

B、油毡

C、麻布

D、塑料防水板

下列各项，属羊水进入母体循环最常见的途径是

A．子宫颈管黏膜的静脉
B．子宫体部内膜的静脉
C．不正常开放的子宫血管
D．胎盘附着处的血窦
E．剖宫产子宫切口处开放的血管

持居民身份证开通电话银行服务的，还须通过联网核查公民身份信息系统对客户身份（含委托人及代理人）进行核查。同时，需对委托人及代理人进行（）的核查。

A.财务情况

B.社会背景

C.户籍情况

D.反洗钱“黑名单”