问题
多项选择题
下列关于电焊机使用的说法正确的是（）。
A.电焊机应当放置在通风良好的地方
B.电焊机可以使用胶盖闸
C.焊机一、二次的接线均应用接线端子连接
D.焊机一、二次接线柱不得外露
答案
参考答案：A, C
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下列关于电焊机使用的说法正确的是（）。
A.电焊机应当放置在通风良好的地方
B.电焊机可以使用胶盖闸
C.焊机一、二次的接线均应用接线端子连接
D.焊机一、二次接线柱不得外露
参考答案：A, C
| 阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话，使其意思完整。 | |
B: Yes, of course. Children often write to me and ask me how to solve their problems. A: 2. _______ B: Many can't decide when to study and when to play. I think they should learn to achieve a balance between study and play. A: I agree. Sometimes I get too much homework and 3. _______ B: You must feel stressed from time to time, right? A: Yes. Can you give me some advice? B: OK. 4. _______ A: I see. Any more? B: Yes. You can also get help from youth workers at your own school. A: Thanks for your advice. B: 5. _______ |