考核抗结核治疗效果的主要指标是
A.痰菌检查
B.胸部X线
C.体力明显恢复
D.结核中毒症状消失
E.咳嗽减轻,痰量减少
参考答案:A
The boy tries hard _______ the other students. [ ]
A. doesn't fall over
B. don't for behind
C. not to fall behind
D. not fall behind
炒炭后产生止血作用的药物是()
A.莱菔子
B.大蓟
C.白茅根
D.荆芥
E.白术