阅读理解。

Schoolsarestillfreetopassthepotato.OnTuesdaytheU.S.Senatevotedtoblockaproposal(提议)bytheU.S.DepartmentofAgriculture(USDA)wouldhavelimitedtheamountofpotatoesandother

starchy(富含淀粉的)vegetablesservedinschools.Andthosevegetableshighincarbohydrates(碳水化合物)wouldalsohavebeenbannedfromschoolbreakfast.TheUSDAhad

wantedtomakethechangestothefederalschoollunchprogram.

TheSenate'samendment(修正案)blockstheUSDAfromputtinganylimitsonamountof

servingsofpotatoesorothervegetablesinschoollunches.SenatorSusanCollinsofMainea

potato-growingstatesupportedamendment."USDA'sproposedrulewouldhaveputsignificantand

needlesscostsonournation'sschooldistrictsatatimewhentheycanleastaffordit"Collinssaid.

Thoseinfavorofpotatolimitsaythatchildrengetenoughpotatoesalreadyandshouldbeencouraged

totryothervegetables.ThecentreforscienceinthePublicInterestpushedforthe

restrictions."USDA'sproposalwasabouthelpingkidstoeataverywidevarietyofvegetablesandIthinkthatopinionhasbeenlostinallthis"saidtheCenter'sMargoWootan"Othervegetableshaveahardtimecompetingwithpotatoes."

Theproposedchangeupsetpotatogrowerswhobelievedpotatoeswerebeingunfairlytargeted.

SomeschoolshavecriticizedtheUSDA'sattempttotellthemexactlywhatfoodstheycanorcan't

serve.CriticssaytheUSDAshouldfocusonadvisingschoolsonhowtopreparethepotatoinstead.

Potatoescanbe a good source offiber. Many schoolsalreadyprepareFrenchfrieswithless

grease(油脂)andservepotatoesinhealthierways.

TheUSDAisexpectedtoreleaseafinallistofguidelinesforthefederalschoollunchprogramnext

year.SenatorMarkUdallofColoradoanotherpotato-growingstatealsosupportedtheamendmentthatblockedthepotatolimit."Thisamendmentseekstoensureflexibilityforschoolstoprovidenutritiousand

affordableschoolmeals."hesaid.

1.WhatisthecontentoftheproposalputforwardbytheUSDA?

A.Reducingtheamountofstarchvegetablesservedinsc