回料阀前立管温度控制在1050℃以内,防止物料()堵管。
A.潮湿
B.自燃
C.结焦
D.自流
参考答案:C
I have $50,but that isn't ________ enough for my journey fare.
A.almost
B.nearly
C.hardly
D.mostly
具清热凉血止血功效的药有()
A.黄芩
B.黄连
C.青蒿
D.地骨皮
E.蝉蜕