关于肝血管瘤的描述，哪项不对（）

A.女性发生率比男性略高

B.终生缓慢生长

C.多数血管瘤直径≥3cm

D.多发血管瘤发生率并不低

E.血管瘤无恶变倾向

It will be emphasized that commercial space operations are inherently complex, longterm, capital-hungry, and set by a variety of risks.

A．beset by

B．inset by

C．preset by

D．reset by