— I’m still working on my project.

— Hurry up, or you’ll miss the deadline. Time is _______________.

A．running out

B．dying out

C．giving out

D．bursting out

下列哪些是龙胆的性状特征（）

A.根圆柱形

B.表面淡黄色

C.质脆易折断

D.断面、木部呈点状环列

E.味极苦