牙周膜的血管来源于（） A.牙龈的血管 B.牙髓动脉 C.上下牙槽动脉分支进入牙槽骨

毛 * * 认为关系到党和国家的生死存亡，是无产阶级百年大计、千年大计、万年大计的极其重大的问题是( )。

A．培养和造就无产阶级革命事业接班人的问题

B．执政党的建设，尤其是思想建设的问题

C．执政党与群众关系的问题

D．党内民主与党的监督问题

新生儿硬肿症轻、中度如何复温?

七大洲中海岸线最长、最复杂曲折的洲分别是( )。

A．亚洲、欧洲
B．非洲、南极洲
C．北美洲、亚洲
D．南美洲、大洋洲

An internet is a combination of networks connected by (26) ．When a datagram goes from a source to a (27) ，it will probably pass many (28) until it reaches the router attached to the destination network．A router receives a (29) from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet The decision is based on optimization：Which of the available (30) is the optimum pathway

A．modems

B．routers

C．switcher

D．computers

基金销售机构或基金销售人员的利益与基金投资人的利益发生冲突时，应当优先保障基金投资人的合法利益。( )