问题
单项选择题
信号微机监测设备电缆绝缘测量精度是（）。
A、±5%
B、±10%
C、±15%
D、±20%
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
信号微机监测设备电缆绝缘测量精度是（）。
A、±5%
B、±10%
C、±15%
D、±20%
参考答案：B
| 任务型阅读，根据对话内容完成表格。 | ||||||||||
| W: Hi, Li Min. You don't look well today. M: Yes, I have a headache. I went to bed very late last night. W: Staying up is bad for your health. When did you go to bed last night? M: I didn't go to bed until twelve o'clock. W: What were you doing then? M: I was repairing my computer. W: Is that OK now? M: No, it still doesn't work now. Can you help me, Kate? W: I'm sorry. I know nothing about computer. You'd better ask Peter for help. I'm sure he can help you repair it. M: Oh! That's a good idea. Let's go. | ||||||||||
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