Under no circumstances _____ anything that will benefit ourselves but at the same time harm the interests of
A. should we do
B. we should do
C. would do we
D. we would do
查看答案
He gave the order that nothing _____ until the police arrived.
A. was touched
B. is touched
C. be touched
D. could be touched
隧道发生火灾，可利用移动排烟设施在上风隧道口排烟（）
地下建筑通道曲折狭窄，水枪射流受角度影响不能充分发挥作用，因此扑救时间较长（）
微信支付 
支付宝支付