问题
多项选择题
钢材中除了铁、碳以外，还含有少量其它元素，如（）等
A.锰
B.硅
C.硫
D.磷
答案
参考答案：A, B, C, D
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钢材中除了铁、碳以外，还含有少量其它元素，如（）等
A.锰
B.硅
C.硫
D.磷
参考答案：A, B, C, D
| 从方框中选择正确选项，完成下面的对话。（其中有两项多余） A: Hello, Uncle John! B: Hello, Bob! 1____You look worried and upset. A: 2 I really need your help. B: What do you mean? A: Well, 3 But now my homework becomes more and more difficult since I am in Grade Three. My parents don't allow me to play basketball. B: Maybe your parents are right. 4 A: I see.I do well in all my lessons and I think I should be allowed to do the things that I'm interested in. B: OK. 5 A: Thank you, Uncle John. It's very kind of you. | |
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