问题
单项选择题
盘拉操作工测量铜管的外径时应使用（）。
A.比例尺
B.刻度尺
C.游标卡尺
D.外径千分尺
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
盘拉操作工测量铜管的外径时应使用（）。
A.比例尺
B.刻度尺
C.游标卡尺
D.外径千分尺
参考答案：D
| 口语运用，从所给句子中选出正确的选项填空，有两句是多余的。 | |
| Mary: Welcome to the English club. Today we're going to talk about the best ways to learn English. 1. Jim: Do you learn English by watching English-language videos? Helen: No: It's too hard to understand the voices. Jim: 2. Do you learn English that way? Helen: I think so. It helps to write English everyday. Gina: 3. Helen: Yes, I have. I've learned a lot that way. Mary: Do you ever practice conversations with friends? Helen: Oh, yes. 4. Jim: What about reading aloud to practice pronunciation? Gina: 5. I think it helps. Ben: I do too. And I always look up new words in a dictionary. Gina: That's a great idea!
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