儿童哮喘诊断标准中不包括()
A．哮喘呈反复发作
B．有家族史
C．发作时肺部有哮鸣音
D．平喘治疗有效
E．持续咳嗽或反复发作一个月
参考答案：E
. --So hard __________ in the past few months that he has made great progress in English.
--I can see that, only a few mistakes he made in this exam.
A．he worked
B．did he work
C．he has worked
D．has he worked
教育训练是提高公安队伍素质的根本途径。 ( )
