解方程：2x（x-3）=9-3x（用因式分解法解）

大动脉硬化时血压的变化是（）

A.收缩压和舒张压都升高

B.收缩压降低，舒张压升高

C.收缩压升高，舒张压降低

D.收缩压降低，舒张压不变

E.收缩压和舒张压变化都不大

95598客户服务模块交换接入子系统的基本功能？

引起急性肾小球肾炎的常见病因是（）

A.甲型肝炎病毒感染

B.乙型肝炎病毒感染

C.葡萄球菌感染

D.β-溶血性链球菌A组12型

E.乙族甲组溶血性链球菌感染

下图中V、I、S、T、A五个国家被称之为“展望五国”，他们分别是越南、印度尼西亚、南非、土耳其和阿根廷。继“金砖四国”之后，VISTA有望成为新兴市场队伍中的明星。读图回答下列问题。

I国有“地质灾害的超市”之称，原因是什么？

A severe drought can actually lessen the total amount of government aid that United States farmers receive as a group. The government pays farmers the amount, if any, by which the market price at which crops are actually sold falls short of a preset target price per bushel for the crops. The drought of 1983, for example, caused farm-program payments to drop by $10 billion.
Given the information above, which of the following, if true, best explains why the drought of 1983 resulted in a reduction in farm-program payments

A．Prior to the drought of 1983, the government raised the target price for crops in order to aid farmers in reducing their debt loads.

B．Due to the drought of 1983, United States farmers exported less food in 1983 than in the preceding year.

C．Due to the drought of 1983, United States farmers had smaller harvests and thus received a higher market price for the 1983 crop than for the larger crop of the preceding year.

D．Due to the drought of 1983, United States farmers planned to plant smaller crops in 1984 than they had in 1983.

E．(E) Despite the drought of 1983, retail prices for food did not increase significantly between 1982 and 1983.