【单选题】I have worked here since I __________ (graduate) from college.
【单选题】I have worked here since I _________ from college.
【多选题】突发公共卫生事件的定义包括下列哪些()
A.
造成或可能造成社会公众健康严重损害的重大传染病疫情
【单选题】某反应在 298K 标准状态下不能自发进行,但当温度升高到一定值时,反应能自发进行,则符合的条件是 。
A.
Δ r H θ m > 0, Δ r S θ m > 0
B.
Δ r H θ m > 0, Δ r S θ m < 0
C.
Δ r H θ m < 0 , Δ r S θ m > 0
D.
Δ r H θ m < 0, Δ r S θ m < 0
【单选题】I have worked here since I __________ from college.
【单选题】关于行政处罚时效说法正确的选项是( )。
B.
违法行为在二年内未被发现的,不再给予行政处罚
【简答题】I have worked here ______ five years. (for)
【单选题】I have worked here since I __________ (graduate) from college.
【单选题】某反应△rGm(298K)=-10KJ/mol,在25°C等温、等压及各物质都处于其标准状态下,反应是