为切实加强CRH2型动车组在气温（）存放时的管理，防止部分设备因存水冻结造成损坏，确保动车组完好。
A.低于4℃
B.高于0℃
C.低于0℃
参考答案：C
He doesn’t like lions. They are very_______, he thinks.
A．cute
B．smart
C．scary
D．beautiful
The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate.
A．drastic
B．dull
C．obscure
D．distinct。
