垂体瘤属脑内肿瘤,包膜完整,与周围组织界限清楚。
参考答案:错
西周后期( )垄断山泽之利,又压制国人言论,最终引发了“国人暴动”。
A.周厉王
B.周平王
C.周幽王
D.周成王
His mother is ______. Today is his mother’s thirtiethbirthday.
A. thirteen B. thirty C. Thirtieth