问题标题：
【themillionofcalculationsinvolved,hadtheybeendonebyhand,填空allpracticalvaluebythetimetheywerefinisheda：hadlostb:wouldlostc:wouldhavelostd:shouldhavelost】
问题描述：
themillionofcalculationsinvolved,hadtheybeendonebyhand,填空allpracticalvaluebythetimetheywerefinished
a：hadlost
b:wouldlost
c:wouldhavelost
d:shouldhavelost
程洪波回答：
选C原句是过去式虚拟语气的倒装句可以写为themillionofcalculationsinvolved,iftheyhadbeendonebyhand,it(是不是少了it)wouldhavelostallpracticalvaluebythetimetheywerefinished从句为过...
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