预热器混合气气相温度≥70℃。
参考答案:对
According to ________ People's Daily article, 40% of the lakes in Jiangsu have dried up in ________ past 30 years.
A.the;a
B.不填;the
C.a;the
D.不填;a
既能发汗解肌,又能温通经脉的药物是()
A.葛根
B.麻黄
C.桂枝
D.薄荷
E.柴胡