修井公锥GZl05—1打捞直径为φ()mm。
A.39~67
B.88~103
C.54~77
D.72~90
参考答案:C
This_____ my uncle and those _______ my grandparents.
A.is; are
B.are; is
C.are; are
D.is; is
油的深度精制更能提高其抗氧化安定性。