来自罗勇的问题
有关倒装的选择------,ourexperimentwounldhavefaildedaiftheydidn'thelpusb.iftheyhaven'thelpedusc.hadtheynoyhelpedusd.shouldtheynothelpedus我想知道bd哪里错了?
有关倒装的选择------,ourexperimentwounldhavefailded
aiftheydidn'thelpus
b.iftheyhaven'thelpedus
c.hadtheynoyhelpedus
d.shouldtheynothelpedus
我想知道bd哪里错了?
1回答
2020-11-06 07:24