患者女，50岁，因“发现左乳肿物2个月”来诊。查体：左乳内上象限可触及肿物，直径2c

用砖砌墙，第一层（底层）用去了全部砖块的一半多一块，第二层用去了剩下的一半多一块，…，依此类推，每一层都用去了前一层剩下的一半多一块，如果到第9层恰好砖用光．那么，共用去的砖块数为（　　）

A．1022

B．1024

C．1026

D．1028

监理规划要随着建设工程的开展不断补充、修改和完善，这表明监理规划( )。

A．应分阶段编写

B．具体内容应有针对性

C．基本内容应力求统一

D．应遵循建设工程的运行规律

油、水井地层严重出砂，会导致窜槽。

如果一国潜在GDP小于实际GDP，可能意味着（　）

A．经济增长过快

B．存在通货膨胀

C．资源被过度利用

D．失业增加

E．GDP缺口为负

In year X a total of 355 billion dollars was spent for health care in the United States, 30 percent of which was spent by private health insurance companies. Was the amount spent for health care by the federal government’s medicare program less than 60 billion dollars ？（）

(1)In year X medicare spent more than , but less than , of the amount spent by the private health insurance companies for health care.

(2)In year X medicare spent 50 billion dollars less for health care than the amount spent by private health insurance companies.

A．条件(1)充分，但条件(2)不充分．

B．条件(2)充分，但条件(1)不充分．

C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．

D．条件(1)充分，条件(2)也充分．

E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．