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<div style=" language: zh-CN; line-height: normal; margin-top: 9.23pt; margin-bottom: 0pt; margin-left: .38in; text-indent: -.38in; direction: ltr; unicode-bidi: embed; vertical-align: baseline; mso-line-break-override: none; word-break: normal; punctuation-wrap: hanging; text-align: center;"><span style=" mso-ascii-font-family: 华文新魏; mso-fareast-font-family: 华文新魏; mso-bidi-font-family: +mn-cs; mso-bidi-theme-font: minor-bidi; color: black; mso-color-index: 1; text-shadow: auto; language: zh-CN; font-weight: normal; font-style: normal; mso-no-proof: no; vertical-align: baseline; mso-text-raise: 0%; mso-effects-shadow-color: black; mso-effects-shadow-alpha: 100.0%; mso-effects-shadow-dpiradius: 3.0pt; mso-effects-shadow-angledirection: 2700000; mso-effects-shadow-dpidistance: 3.0pt; mso-effects-shadow-pctsx: 100.0%; mso-effects-shadow-pctsy: 100.0%; mso-effects-shadow-anglekx: 0; mso-effects-shadow-angleky: 0; mso-effects-shadow-align: topleft; mso-style-textoutline-type: none; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: black; mso-style-textfill-fill-alpha: 100.0%;"><span style=" font-size: large;"><span style=" font-family: 宋体;">以机械性传播疾病为主。</span></span></span></div>