1.(单选题)如图所示,图中“2φ18”表示的是( )。

A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959811354975.png">

B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/170495981137920.png">

C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959811435752.png">

D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959811501695.png">

A.40

B.44

C.48

D.88

A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959827846305.png">

B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959827873890.png">

C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959827893212.png">

D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959827952714.png">

A.2根直径为18厘米的钢筋

B.2根直径为1.8毫米的钢筋

C.2根直径为18毫米的钢筋

D.18根直径为2毫米的钢筋

A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959811120603.png">

B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959811141111.png">

C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959811161288.png">

D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959811221182.png">

A.局部断面图

B.移出断面图

C.中断断面图

D.重合断面图

A.-3.400

B.-13.300

C.-16.700

D.-20.100

A.菜地

B.花圃

C.草地

D.沼泽

A.桥梁

B.铁路

C.大车路

D.小路