用于衡量系统语音质量的指标是（）
A: ch/cell
B: Erl./cell
C: c/I
A: ch/cell
B: Erl./cell
C: c/I
举一反三
- 用于衡量系统容量的指标是（） A: ch/cell B: c/I C: s/n
- 构成胃黏膜上皮的细胞是<br/>() A: chief<br/>cell(zymogenic cell) B: parietal cell(oxyntic cell) C: mucous<br/>neck cell D: surface<br/>mucous cell E: Paneth<br/>cell
- 降钙素是由下列哪种细胞分泌： A: Parafollicular cell B: follicular epithelial cell C: chief cell D: acidophilic cell E: chromaffin cell
- Which cell is the most abundant cell in the epidermis? A: Merkel cell B: Keratinocyte C: Langerhans cell D: Melanocyte
- Islet can be divided into ( ) cells by staining. A: Islet A cell B: Islet B cell C: Islet C cell D: Islet D cell E: Islet PP cell