问题
填空题
若函数f（x）满足f（3x+2）=9x+8，则f（x）=______．
答案
因为f（3x+2=9x+8=3（3x+2）+2，
所以f（x）=3x+2．
方法2：设t=3x+2，则x=
，所以f（t）=9×t-2 3
+8=3t+2．t-2 3
所以f（x）=3x+2．
故答案为：3x+2．
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若函数f（x）满足f（3x+2）=9x+8，则f（x）=______．
因为f（3x+2=9x+8=3（3x+2）+2，
所以f（x）=3x+2．
方法2：设t=3x+2，则x=
，所以f（t）=9×t-2 3
+8=3t+2．t-2 3
所以f（x）=3x+2．
故答案为：3x+2．
| 完形填空。 | |||
| The Foreign Ministry on May 19,2008 opened a book of condolences(吊唁簿) for foreign diplomats(外交官) to express their sympathies for the __1__ of the Sichuan earthquake. It__2__ open for three days, until the __3__ of the national mourning(全国哀悼). Ambassadors and diplomats __4__ more than 150 countries and international organizations on May 19,2008 __5__ to sign the book and __6__ their heads at a mourning board. The diplomats also expressed their __7__ for the Chinese government, the PLA and the Chinese people in __8__ the disaster. Coffie Alain N. Papatchi, the Ivory Coast's ambassador to China, was the first __9__ the book of condolences,__10__ Jorge Eugenio Guajardo Gonzalez, the Mexican ambassador, led embassy __11__ in paying their respects. Nirupama Rao, the Indian ambassador,__12__ arrived back in Beijing after __13__ quakehit areas, was also __14__. Foreign Minister Yang Jiechi __15__ the visitors and expressed his __16__ for their friendship and support. The foreign ministry's overseas __17__ also on May 19,2008 opened books of condolences and flew the Chinese flag at halfmast. As of May 18,2008, the leaders of 166 countries and heads of more than 30 international organizations had offered __1__ condolences(哀悼) to China. As well as sending __1__ teams to the country, the international community has __20__ $246 million by May 20,2008. | |||
| ( )1.A.victims ( )2.A.left ( )3.A.permission ( )4.A.off ( )5.A.signed up ( )6.A.bowed ( )7.A.desire ( )8.A.connecting with ( )9.A.to design ( )10..while ( )11.A.crew ( )12.A.which ( )13.A.visiting ( )14.A.consistent ( )15.A.received ( )16.A.attitude ( )17.A.organizations ( )18.A.our ( )19.A.chief ( )20.A.made | B．people B．maintained B．decision B．in B．lined up B．lifted B．respect B．dealing with B．to resign B．when B．team B．who B．describing B．absent B．made B．altitude B．government B．their B．belief B．donated | C．soldiers C．expanded C．conclusion C．from C．made up C．shook C．understanding C．arguing with C．to sign C．as C．faculty C．that C．rescuing C．present C．led C．latitude C．country C．his C．relief C．gave | D．wounded D．remained D．celebration D．to D．stood up D．hit D．support D．beginning with D．to respect D．for D．staff D．whom D．scanning D．content D．directed D．gratitude D．missions D．her D．brief D．collected |