诊断子宫内膜癌的最佳方法是
A.分段诊断性刮宫B.诊断性刮宫C. * * 镜取材活检D.宫颈刮片细胞学检查E.超声波B型显像法
参考答案:A
点P(x,2,1)到Q(1,1,2),R(2,1,1)的距离相等,则x的值为______.
The previous lecture focused on the reading problems in new words, while this lecture will turn to _____ in
complex sentence structures. [ ]
A. that
B. one
C. those
D. ones