_____ she was very tired, she went on working.
A.As
B.Although
C.Even
D.In spite of
答案:B
生活垃圾填埋工程中,泥质防渗层施工技术的核心是()施工技术。
A.选择最佳配合比
B.拌合均匀
C.控制含水量及压实度
D.掺加膨润土的拌合土层
引导接车时,列车运行速度有何规定?