On no account can parents always _______ with the children, otherwise they will become more greedy and come up with more unreasonable requests.

A．compromise

B．overlook

C．disapprove

D．cooperate

关于星形胶质细胞瘤，说法正确的是（）

A.来源于中枢神经系统的胶质细胞

B.分化越好，肿瘤的境界越清楚

C.良性者多呈膨胀性生长

D.常见经血道转移到肺

E.肥胖型星形胶质细胞瘤属交界性肿瘤