【单选题】【消耗次数：1】
标注球面的直径或半径时，应在直径符号或半径符号前加注“R”。( )
①
正确
②
错误
参考答案：
复制
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相关题目
【单选题】
标注球面的直径时，在尺寸数字的前面应加注（ ）
①
S
②
<imgwidth="19"height="24"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk004.files/gctx_zk0041075.png">
③
<imgwidth="27"height="27"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk004.files/gctx_zk0041179.png">
④
<imgwidth="30"height="25"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk004.files/gctx_zk0041283.png">
【单选题】
标注球面的直径时，在尺寸数字的前面应加注（ ）
①
S
②
<imgwidth="21"height="23"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk001.files/gctx_zk0011072.png">
③
<imgwidth="23"height="18"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk001.files/gctx_zk0011176.png">
④
<imgwidth="28"height="23"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk001.files/gctx_zk0011280.png">
【单选题】
下列关于半径、直径、球的尺寸标注说法有误的一项是（ ）。
①
在圆内标注的尺寸线应通过圆心，两端画箭头指至圆弧
②
标注圆的直径尺寸时，直径数字前不得加直径符号
③
球的尺寸标注方法与圆弧半径和圆直径的尺寸标注方法相同
④
半径的尺寸线应一端从圆心开始，另一端画箭头指向圆弧
【单选题】
标注圆的直径时，在尺寸数字的前面应加注（ ）
①
S
②
<imgwidth="19"height="24"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk002.files/gctx_zk0021072.png">
③
<imgwidth="27"height="27"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk002.files/gctx_zk0021176.png">
④
<imgwidth="30"height="25"src="http://wljy.whut.edu.cn:80/uploadfiles/word/gctx_zk002.files/gctx_zk0021280.png">
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