[问答题] 简述毛细线虫病的流行情况。

战勤保障大队抗溶性泡沫储备数量为5吨。 现阶段信息处理技术领域有哪两种主要发展趋势？ Spontaneous ignition can result from（）. ["an unprotected drop-light bulb","careless disposal or storage of material","smoking in bed","worn electrical wires on power tool"] 如何理解礼仪协调关系的功能？ Large pipes or down-comers are fitted between the steam drum and （） to ensure good natural circulation of water. ["fire-tubes","furnaces","water drums","water wall tube"] 简述毛细线虫病的流行情况。