下面的方法中，能改变线圈电感大小的方法的有（） ["增大线圈的电流","增大线圈的体积","增加线圈的匝数","在线圈中插入铁心","将线圈从一个地方移到另一个地方"]
Class B fires are best extinguished by smothering, i-e（）. ["deprival of oxygen","removal of heat","spraying of water","injecting of soda-acid"]
“宇宙很拥挤，要用最小的成本保护自己，把别人消灭”出自于（）。 ["相对论","宇宙论","世界之谜","黑暗森林理论"]
下面属于我国古代戏剧家的有（）。 ["汤显祖","王实甫","关汉卿","曹雪芹"]
Catenary as applied to tow lines denotes the（）. ["dip of the line","stretch of the line","strain on the line","length of the line"]
卷烟货源投放的业务流程是什么？
