地基不是建筑物的组成部分，对建筑物无太大影响。

脑底动脉环是由（）

A.大脑中动脉

B.大脑后动脉

C.大脑前动脉

D.前交通动脉

E.颈内动脉

阅读下面短文，用括号内所给动词的适当形式填空 (必要时可加情态动词或助动词)。

Many of us Chinese are Yao Ming’s fans. Of course we all know he 1     ( retire ) for several months . Yao made farewell(告别) conference Wednesday. He said he  2  (force )to make this decision by a series of foot and leg injuries. Yao played eight seasons in the NBA.

“Today is an important day for me and   3  (hold) a special meaning for both my basketball career and my future,”Yao said. “ I    4  (think) about my future for a long time. Today I am announcing a personal decision,   5  (end ) my career as a basketball player and officially retire. But one door is closing and another one   6  (open).’’

Yao said he   7   ( return) to work with his former Chinese team, the Shanghai Sharks, with the possibility of    8  (become) general manager. He already   9  (own) the club and wants to contribute more. He thanked a lot of people — his family, former coaches, even players like Shaquille O’Neal — “for making me a better player.’’

Rockets(火箭队) general manager Daryl Morey was among those attending the farewell conference Wednesday. “I would be sorry if I wasn’t here.” “It’s a big moment,’’ Morey added. “Yao had a sense of humor, a great attitude and sense of responsibility. I hope we 10  (continue) his culture in the NBA.’’

规费中的社会保险费中一般包括（）。

A.职工失业保险费

B.职工医疗保险费

C.易地安家补助费

D.职工工伤保险费

开放式基金还须对基金份额的申购与赎回情况、转入与转出情况进行会计核算。( )

简述日本农业的成就和面临的问题。