资源严重减少的主要常用野生药材物种
A．医疗机构制剂室B．药品生产企业C．药品批发企业D．药品零售企业E．各级医疗机构
参考答案：C
视杆细胞（）。
A、仅辨认细节，无法辨认颜色
B、仅辨认颜色，无法辨认细节
C、辨认细节和颜色
D、无法辨认细节和颜色
— Linda had nothing for breakfast this morning, ______?
— No. She got up too late. [ ]
A. had she
B. hadn't she
C. did she
D. didn't she
