政府部门和企业分别对其公示信息的()、及时性负责。

单项选择题In the specific factors model, a 5% increase in the price of food accompanied by a 10% increase in the price of cloth will cause ________ in the welfare of labor, ________ in the welfare of the fixed factor in the production of food, and ________ in the welfare of the fixed factor in the production of cloth. A、an ambiguous change; an increase; a decrease B、a decrease; an ambiguous change; an ambiguous change C、an ambiguous change; an ambiguous change; an ambiguous change D、an ambiguous change; a decrease; an increase

单项选择题一级建筑桩基应采用()，并结合静力触探、标准贯入试验等原位测试方法综合确定单桩的竖向极限承载力。