John H Hall played a significant role in developing the “American system of production” in early 19th century-using interchangeable parts for mass manufacturing, which lowered costs and improved efficiency.()此题为判断题(对，错)。
题目
John H Hall played a significant role in developing the “American system of production” in early 19th century-using interchangeable parts for mass manufacturing, which lowered costs and improved efficiency.()
此题为判断题(对，错)。
相似考题
参考答案和解析
更多“John H Hall played a significant role in developing the “American system of production ”相关问题
-
第1题：
Giventhisfragmentinaservlet：23.if（req.isUserInRole（"Admin"））{24.//dostuff25.}AndthefollowingfragmentfromtherelatedJavaEEdeploymentdescriptor：812.<security-role-ref>813.<role-name>Admin</role-name>814.<role-link>Administrator</role-link>815.</security-role-ref>900.<security-role>901.<role-name>Admin</role-name>902.<role-name>Administrator</role-name>903.</security-role>Whatistheresult？（）
A.Line24canneverbereached.
B.ThedeploymentdescriptorisNOTvalid.
C.Ifline24executes，theuser’srolewillbeAdmin.
D.Ifline24executes，theuser’srolewillbeAdministrator.
E.Ifline24executestheuser’srolewillNOTbepredictable.
参考答案：D
-
第2题：
下列值不为true的表达式有( )。
A、"john"=="john"
B、"john".equals("john")
C、"john"="john"
D、"john".equals(newString("john"))
正确答案：C
-
第3题：
He's spent years cultivating a knowledge of art.A:using
B:denying
C:sharing
D:developing答案：D解析：这句话的意思是：他用了数年的时间学习艺术知识。句中“cultivate”意为“培养”。四个 选项中A项意为“使用”;B项意为“否认”;C项意为“分享”;D项意为“发展，培养”。因此只有 D项最为合适。 -
第4题：
She likes to spend time( )with her grandchildren.
A. play
B. to play
C. playing
D. played
正确答案:C
-
第5题：
He's spent years cultivating a knowledge of art.A:sharing
B:using
C:denying
D:developing答案：D解析：他花费多年培养对艺术的学识。cultivate：培养；share：分享；use：使用；deny:否定； develop：发展，最符合题意。 -
第6题：
He's spent years cultivating a knowledge of art.A:denying
B:using
C:sharing
D:developing答案：D解析：本句意思：他已花费多年培养对艺术的学识。Cultivate“培养”和develop“发展”意思相 近。spend(time)doing sth./in doing sth.“花（时间）做某事”。第2部分：阅读判断