契税纳税义务发生时间为( )。A．纳税人签订土地、房屋权属转移合同的当天 B．纳税

阅读理解。

     The high Eiff'el Tower, the colorful streets, the beautiful river Seine, the glorious palaces, the romantic

people,  the old history一Pa.ris is a great place to all the people in the world.

     As the capital of France, Paris is a modern city with a long and rich history. So many events took place here and chere are so many places for the visitors to have a trip.

     The Triumphal Arch(觊旋门)  was finished in 1836.  It's a world famous build-

ing, too.  The Eiffel Tower(埃菲尔铁塔) , which is 320 meters high, is the symbol of

Paris.  It was completed in 1889. The Eiffel Tower is located on the left bank of the River Seine, at the

northwestern extreme of the Parc du Champ de Mars.  The Tower is repainted every 7 years, with 50

tonsof paint.

根据短文内容，判断下列句子的正误，正确的用A表示，错误的用B表示。

(      )l. Paris is really a good place to visit for only French people.

(      )2. Paris, the capital of England, has a long and rich history.

(      )3.The Triumphal Arch which has a more than 200 years' history is a good place to visit in Paris.

(      )4. Eiffel Tower, which is 320 meters high, is the highest symbol of Paris.

(      )5. Every seven years, the Eiffel Tower is repainted.

物业管理区域内的有些建筑物或建筑部位，开发建设单位并不出售，而是留作出租或自用，所有权可以属于开发建设单位所有的物业是（）。

A.出租的地下车库

B.电暖设施

C.池井

D.水泵

下列脂类属于生物膜的结构成分的是______

A．甘油三酯

B．糖脂

C．磷脂

D．胆固醇酯

E．胆固醇

典型调查法选取典型的具体方法包括哪些

诊断营养性巨幼细胞性贫血，首选（）

A.血清维生素B₁₂测定

B.血清铁含量测定

C.骨髓象检查

D.网织红细胞计数

E.叶酸、维生素B₁₂试验性治疗