妊娠24周末:
A.Chadwick征B.蒙氏结节C.HegarsignD.Braxton Hicks收缩E.乳腺增生
参考答案:C
______your judgement, we should have a good summer.[ ]
A. By
B. With
C. On
D. From
风力发电机偏航系统的功能是什么?