在现代资本主义发达国家中，往往出现某个行业中几家大公司通过相互间协商最终确定市场价格，这种情况说明（）。

A．价格依然围绕价值上下波动

B．垄断价格规律起作用

C．上述市场价格等于商品价值

D．价值规律发生了变化

The proposal to hire ten new police officers in Middletown is quite foolish. There is sufficient funding to pay the salaries of the new officers, but not the salaries of additional court and prison employees to process the increased caseload of arrests and convictions that new officers usually generate.
Which of the following, if true, will most seriously weaken the conclusion drawn above

A．Studies have shown that an increase in a city’s police force does not necessarily reduce crime.

B．When one major city increased its police force by 19 percent last year, there were 40 percent more arrests and 13 percent more convictions.

C．If funding for the new police officers’ salaries is approved, support for other city services will have to be reduced during the next fiscal year.

D．In most United States cities, not all arrests result in convictions, and not all convictions result in prison terms.

E．(E) Middletown’s ratio of police officers to citizens has reached a level at which an increase in the number of officers will have a deterrent effect on crime.