A-A+ Ask them to______ carefully the planes radio and radar system.A．check onB．check offC．check 2020-09-28 00:54:59 外语考试 阅读 问题详情 Ask them to______ carefully the planes radio and radar system.A．check onB．check offC．check outD．check up请帮忙给出正确答案和分析，谢谢！ 参考答案 查看解答
