此额外心音的听诊特点应该是
A.音调高、较响、短促B.音调高、响亮、清脆、短促、呈拍击样C.音调低、短促、较轻D.音调高、响亮、较长E.音调低、较轻、较长
参考答案:B
— Why don't you like your job?
— It's always being ___by my director. [ ]
A. watched at
B. watched out
C. watched over
D. watched on
中药全产业链中包含了中药材的源头环节是()
A、中药材的种养殖生产和产地加工
B、中药材饮片
C、炮制加工以及中成药生产
D、中药材商品的市场营销