Suppose there were a flood or an earthquake and the people could not be reached by trains or trucks. ______ packages of food

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问题 Suppose there were a flood or an earthquake and the people could not be reached by trains or trucks. ______ packages of food could be dropped from planes, the people might starve.

选项 A、Until
B、Before
C、Unless
D、If only

答案C

解析 unless“除非”，从主从句的逻辑关系上看是惟一正确的选择。句意：“假如发生了水灾或地震，且火车、汽车又无法通至灾区，除非用飞机空投，否则那里的人们就会饿死。”

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专业英语四级

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Suppose there were a flood or an earthquake and the people could not be reached by trains or trucks. ______ packages of food

专业英语四级

Accordingtothepassage,theeconomicandindustrialchangesaswellaspeople’sdesiretoimprovetheirpositionscanusually

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ScientistshavelongbelievedonewaytostoptheEarth’satmospherefromwarmingisbyplantingmoretrees.Theideaisthatmo

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Valentine’sDayisapproaching.Timetomakeachecklist:Didyousendacard?Didyoumakedinnerreservations?Ifnot,do

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