甘味食品具有的作用是()。
A.活血
B.燥湿
C.补虚
D.软坚
参考答案:C
—When was your sister born?
—_____ was born in 1990.[ ]
A. Her
B. Hers
C. She
D. He
石油沥青防腐层的制作是用()的沥青浇涂在钢管表面,同时缠绕玻璃布。
A.高弹态
B.玻璃态
C.粘流态
D.无定形态