A、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/518d5001-a42c-4f59-8a23-6c7e27ae4ac9.gif"title="ex_1257305889648_0.gif" alt="ex_1257305889648_0.gif"/>为受压面形心处的绝对压强</span>
B、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/9d16871e-89ba-4f03-9dae-c7f4302d6370.gif"title="ex_1257305905154_0.gif" alt="ex_1257305905154_0.gif"/>为压力中心处的相对压强</span>
C、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/462f9044-adff-44e0-96b7-573d4bedeada.gif"title="ex_1257305922888_0.gif" alt="ex_1257305922888_0.gif"/>为受压曲面的面积</span>
D、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/7d726818-f921-4fb2-b832-745da679fb81.gif"title="ex_1257305939337_0.gif" alt="ex_1257305939337_0.gif"/>为受压曲面在铅垂面上的投影面积</span>