兴奋性低于正常时期为A．绝 对不应期 B．相对不应期 C．超常期 D．低常

Why is (71) fun What delights may its practitioner expect as his reward First is the Sheer joy of making things．As the child delights in his mud pie，So the adult enjoys building things，especially things of hid own design．Second is the pleasure of making things that are useful to other people．Third is the fascination of fashioning complex puzzle-like Objects of interlocking moving parts and Watching them work in subtle cycles，playing out the consequences of principles built in from the beginning．Fourth is the joy of always learning， Which Springs from the (72) nature of the task．In one Way or another the problem id ever new, and its solver learns something：sometimes (73) ，sometimes theoretical，and sometimes both．Finally there is the delight of Working in such a tractable medium．The (74) ，like the poet，works only slightly removed from pure thought-stuff. Few media of creation are so flexible，so easy to polish and rework，so readily capable of realizing grand conceptual Structures． Yet the program (75) ，unlike the poet's words，is real in the sense that it moves and works，producing visible outputs separate from the construct itself．It prints results，draws pictures，produces sounds，moves arms．Programming then is fun because it gratifies creative longings built deep Within us and delights sensibilities we have in common With all men．

（75）处填（）。

A．construct

B．code

C．size

D．scale

患者，女，61岁，因头痛、心悸和心前区不适感就医，门诊查血压：160/95mmHg，家族中无人患高血压和其他心血管疾病，既往无糖尿病、冠心病和高胆固醇血症，据此可以推断该病人高血压危险分层属于（）

A．以上都不是

B．一层(低度危险组)

C．二层(中度危险组)

D．四层(极高危险组)

E．三层(高度危险组)

M₄EO伴有染色体异常是（）

A.t（9；22）

B.t（15；17）

C.inv（16）

D.t（11；14）

E.t（8；21）

目前，发展经济是“中国—东盟自由贸易区”各国最为关心的问题。由于地域和经济关系等因素，中国和东盟日益成为命运共同体，双方的战略伙伴关系进一步得到巩固。这说明（）。

A.维护国家间的共同利益是主权国家对外活动的出发点和落脚点

B.国家间的共同利益是国家合作的基础

C.国际关系的基本形式是竞争和合作

D.我国与东盟结盟，共同反对贸易和投资保护主义

这次国际金融危机______了中国特色发展模式的优越性，中国积极应对国际金融危机，并以本国经济增长为相关国家和经济体______困境提供市场和资金支持，进而在国际危机治理和国际机构改革进程中发挥了建设性作用，改善了国际形象，提升了道义感召力，国际社会开始重新______中国发展模式。

A．凸显 摆脱 审视

B．显现 走出 注视

C．表明 远离 注意

D．突显 去除 思考