【单选题】
mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Times New Roman
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
ZH-CN;mso-bidi-language:AR-SA">已知一立体的主视图和俯视图,关于它的左视图,有以下几种说法,哪一种判断是正确的<img src="https://upload.icve.com.cn:89/ssykt/y@685F7E74F3F05F4D0ECB9904D6EEACE2.png/download?time=636534341114882959&token=07F7C682B0AB015949D0A5DFE542A243&filename=%E8%87%AA%E5%8A%A8%E4%B8%8A%E4%BC%A0p5elah6ofilfkbdrcydsgg20180205132831.png"/>
【简答题】
mso-bidi-font-family:Times New Romanmso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">化工设备的读图要求?