[单项选择]当地市、县人民政府可以发布（）小时之内的临震预报。
A. 12
B. 24
C. 36
D. 48

2006年，全国研究与试验发展(R&D)经费总支出为3003.1亿元，比上年增加553.1亿元，研究与试验发展(R&D)经费投入强度为1.42%。按研究与试验发展人员(全时工作量)计算的人均经费支出为凹万元，比上年增加2万元。 分研究类型看，基础研究经费支出为155.8亿元，比上年增长18.8%；应用研究经费支出为504.5亿元，增长16.4%；试验发展经费支出为2342.8亿元，增长24.3%。 分执行部门看，各类企业经费支出为2134.5亿元，比上年增长27.5%；政府部门属研究机构经费支出567.3亿元，增长10.6%；高等学校经费支出276.8亿元，增长14.2%。 分产业部门看，七大行业的研究与试验发展(R&D)经费投入强度超过1%。医药制造业为1.76%，专用设备制造业为1.7%，电气机械及器材制造业为1.48%，通用设备制造业为1.47%，交通运输设备制造业为1.38%，橡胶制造业为1.19%，通信设备、计算机及其他电子设备制造业为1.19%。 分地区看，研究与试验发展(R&D)经费支出超过100亿元的有北京、江苏、广东、上海、山东、浙江、辽宁、四川和陕西9个省(市)，共支出2154亿元，占全国经费总支出的71.7%。研究与试验发展投入强度达到或超过全国平均水平的有北京、上海、陕西、天津、江苏、辽宁和浙江7个省(市)。

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