不孕患者,检查排卵功能,以下哪项最不相关()
A.基础体温测定
B.B超监测卵巢排卵情况
C.甲状腺功能的检查
D.月经周期中宫颈黏液的检查
E.子宫内膜活组织检查
参考答案:C
John's success has nothing to do with good luck. It is years of hard work _____ has made him what he
is today. [ ]
A. why
B. when
C. which
D. that
减小工件表面粗糙度的方法有哪些