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问题 选择题

电能表上标有3000R/KWh，当接通一个用电器时，电能表100s转5转，则这个用电器消耗的电功率是[ ]

A. 60W

B. 40W

C. 100W

D. 20W

答案

答案：A

单项选择题

侵蚀性葡萄胎最常见的转移途径是

A．向下蔓延到 * *

B．向上蔓延到输卵管

C．穿破宫壁到宫腔

D．淋巴转移

E．血性转移
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单项选择题

ExtremeProgramming（XP）isadisciplineofsoftwaredevelopmentwith①（）ofsimplicity，communication，feedbackandcourage．Successfulsoftwaredevelopmentisateameffort-notjustthedevelopmentteam，butthelargerteamconsistingofcustomer，managementanddevelopers．XPisasimpleprocessthatbringsthesepeopletogetherandhelpsthemtosucceedtogether．XPisaimedprimarilyatobject-orientedprojectsusingteamsofadozenorfewerprogrammersinonelocation．TheprinciplesofXPapplytoany②（）projectthatneedstodeliverqualitysoftwarerapidlyandflexibly．AnXPprojectneedsa③（）customertoprovideguidance．Customers，programmers，managers，areallworking④（）tobuildthesystemthat’sneeded．Customers-thosewhohavesoftwarethatneedstobedeveloped-willlearnsimple，effectiveWaysto⑤（）whattheyneed，tobesurethattheyaregettingwhattheyneed，andtosteertheprojecttosuccess．

②（）

A. small-sized

B.moderately-sized

C.large-sized

D. huge-sized
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