The Christmas tree was decorated with shining ________ such as colored lights and glass balls.
同一个问题在以前历年教师的教与学生的学中都呈现出各个层面的问题,把它们糅合在一起进行整体思考、类比、归纳、总结、改进,以达到温故知新之效。这属于( )
The Christmas tree was decorated with shining ________ such as colored lights and glass balls.
患者男,12岁。颈部结块,形如鸡卵,皮色不变,灼热疼痛,边界清楚,伴风温外感症状。治法应为
病例对照研究中病人常因某些与致病无关的症状而就医,从而提高了早期病例的检出率,致使过高地估计了暴露程度而产生的系统误差是