玉竹的药用部位为
A.块根 B.根茎 C.块茎 D.鳞茎 E.球茎
参考答案:B
—Do you think you will be able to finish your writing by five o’clock today?
— ______. I’ll be busy with experiments all day.
A.Not a chance
B.Not a little
C.Not to mention it
D.Not a big deal
()是指金融工具在金融市场上能够迅速地转化为现金而不致遭受损失的能力
A、收益性
B、期限性
C、流动性
D、风险性