狭义来看，婚姻家庭专指（）形成以来的个体婚姻和个体家庭。A.群婚制 B.对偶婚制 C

高热、胸痛、呼吸急促血性泡沫痰，X线胸片提示支气管肺炎改变。和败血症型鼠疫有黑死病之称的是（）

A.腺鼠疫

B.肺鼠疫

C.败血症型鼠疫

D.皮肤鼠疫

E.肠鼠疫

患者女性38岁，风湿性心脏病史，心电图示心律绝对不规则，无P波，有f波，心室率140次/分，哪一种方法治疗最恰当？（）

A．静注阿托品

B．按摩颈动脉窦

C．静注毛花甙丙

D．口服氢氯噻嗪

E．静注多巴酚丁胺

人体呼吸过程中，当肋间外肌和膈肌同时舒张时．下列叙述不正确的是（　　）

A．胸廓由大变小

B．膈的位置上升

C．气体排出肺

D．气体进入肺

案情：信用卡在现代社会的运用越来越广泛。设甲为信用卡的持卡人，乙为发出信用卡的银行，丙为接受银行信用卡消费的百货公司。甲可以凭信用卡到丙处持卡消费，但应于下个月的15日前将其消费的款项支付给乙；丙应当接受甲的持卡消费，并于每月的20日请求乙支付甲消费的款项，丙不得请求甲支付其消费的款项。　　2012年3月，甲消费了5万元，无力向乙还款。甲与乙达成协议，约定3个月内还款，甲将其1间铺面房抵押给乙，并作了抵押登记。应乙的要求，甲为抵押的铺面房向丁保险公司投了火灾险，并将其对保险公司的保险赔偿请求权转让给了己。　　2012年4月，甲与张某签订借款意向书，约定甲以铺面房再作抵押向张某借款5万元，用于向乙还款。后因甲未办理抵押登记，张某拒绝提供借款。　　2012年7月，因甲与邻居戊有矛盾，戊放火烧毁了甲的铺面房。在保险公司理赔期间，己的债权人庚向法院申请冻结了保险赔偿请求权。　　问题：

张某拒绝向甲提供借款是否构成违约？为什么？

The fact that blind people can "see" things using other parts of their bodies apart from their eyes may help us to understand our feelings about colour. If they can sense colour differences then perhaps we, too, are affected by colour unconsciously.

Manufacturers have discovered by trial and error that sugar sells badly in green wrappings, and that blue foods are considered unpleasant, and the cosmetics should never be packaged in brown. These discoveries have grown into a whole discipline of color psychology that now finds application in everything from fashion to interior decoration. Some of our preferences are clearly psychological Dark blue is the colour of the night sky and therefore associated with passivity and calm, while yellow is a day colour with associations of energy and incentive. For primitive man, activity during the day meant hunting and attacking, while he soon saw as red, the colour of blood and rage and the heat that came with effort. And green is associated with passive defence and self - preservation. Experiments have shown that colours, partly because of their psychological association, also have a direct psychological effect. People exposed to bright red show an increase in heartbeat, and blood pressure; red is exciting. Similar exposure to pure blue has exactly the opposite effect; it is a calming colour. Because of its exciting connotations (涵义) , red was chosen as the signal for danger, but closer analysis shows that a vivid yellow can produce a more basic state of alertness and alarm, so fire engines and ambulances in some advanced communities are now rushing around in bright yellow colours that stop the traffic dead.

Our preferences for certain colours are（）。

A. partly due to psychological factors

B. linked with our primitive ancestors

C. dependent on our character

D. associated with the time of day