【单选题】He is supposedly talking as a(n) ______, but he obviously knows nothing about reality.
【单选题】隧道施工中采用辅助坑道的最主要目的是()
【简答题】请为下面的句子填入正确的介词。 1. Those days when I studied at college were full of fun. = Those days ______ which I studied at college were full of fun. 2. The table where your mother put the book is very beautifu...
【单选题】隧道施工中采用辅助坑道的最主要目的是( )
【简答题】隧道施工中采用辅助坑道的最主要目的是() ⑴提高通风效果 ⑵便于组织出碴、运输 ⑶增辟工作面,长隧短挖,缩短工期 ⑷利于排水