问题
单项选择题
下列金属材料中，焊接性最差的是（）
A．低碳钢
B．中碳钢
C．高碳钢
D．铸铁
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
下列金属材料中，焊接性最差的是（）
A．低碳钢
B．中碳钢
C．高碳钢
D．铸铁
参考答案：D
| Born on July 31, 1965, in Gloucestershire, England, Joanne Kathleen Rowling grew up in rural communities in the southwestern part of that country. Rowling’s childhood experiences (67) her future literary creations. She explored the English countryside, visiting (68) and historical sites which inspired her (69) . Although she disliked science and mathematics, courses, Rowling (70) in literature classes. She penned funny, fantastical tales to (71) her sister Diana and friends, (72) the Potter siblings whose name she later (73) for her wizardry novels. As a teenager, Rowling dreamed of becoming a (74) author whose books were sold in stores. She kept her ambitions a secret, (75) , because she feared criticism and discouragement from people who might declare that her writing was (76) . Rowling gradually became more self-confident and was (77) Head Girl during her final year at school. (78) languages at Exeter University in order to be (79) as a bilingual secretary, Rowling graduated with a degree in French and Classics. This (80) knowledge aided her later clever (81) of characters in the Harry Potter books. Rowling then (82) to Manchester for other office positions. She wrote fiction for adult readers but did not (83) it for publication She also often visited her (84) mother. It was during one of these train trips (85) Rowling began inventing characters and (86) . |
A．scholarly
B．objectively
C．extensively
D．academically