问题
单项选择题
錾削方形槽．宜选用（）錾。
A.平
B.岬状
C.圆鼻
D.菱形
答案
参考答案：B
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錾削方形槽．宜选用（）錾。
A.平
B.岬状
C.圆鼻
D.菱形
参考答案：B
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| Eric had a very busy weekend. 1 Saturday morning, he cleaned his room. In the afternoon, he 2 his homework. It was 3 boring. On Saturday night, he 4 Chinese. His mother cooked fish for 5 . On Sunday morning, he 6 to the library and 7 a book about history. Then in the afternoon he 8 geography. On Sunday night he 9 an hour on the Internet and 10 a talk with his friend in China. | ||||
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