关于乳腺摄影专用正色胶片特点的叙述,错误的是()
A.高分辨率
B.高对比度
C.单层乳剂
D.绿光敏感
E.银盐粗大
参考答案:E
The country has already sent up three unmanned spacecraft, the most recent__at the end of last March.
A.has been launched
B.having been launched
C.being launched
D.to be launched
上述哪项为失笑散的主治证()
A.瘀血内停,脉道阻滞之心腹刺痛证
B.肝郁化火,气滞血瘀之心腹胁肋诸痛证
C.跌打损伤,瘀血阻滞证
D.血瘀寒凝,瘀血阻滞证
E.胸中血瘀证