单项选择题
No food or drink is allowed on the premises . The underlined part means______. (2013-76)
单项选择题 The chief of surgery became committee chairman by virtue of（）.(2014-72)
单项选择题 There were 150_____at the international conference this summer.(2010-68)
单项选择题 The employers prepares, with all due______, for a conference with the Trade Unions. (2014-79)
