题目内容

电阻根据两个焊点距离的长短，长用（）、短用立装。

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被焊接元件的引线不能（）。

剪断过长引线时应贴着（）。

关于相对数，下列哪一个说法是错误的（）

A. 相对数是两个有联系的指标之比
B. 常用相对数包括相对比、率与构成比
C. 计算相对数时要求分母要足够大
D. 率与构成比虽然意义不同，但性质相近，经常可以混用
E. 计算相对数时分母不宜过小

[音频]Use your notes to complete the summary of the lecture below. Then complete your summary with your partner's.Names are sometimes called a cultural 1___.In the United States, parents choose a first name, also known as a(n) 2_ name, in a variety of ways. One way is to use the name of a(n) __3 or _4 member who has recently died. Another is to pass a name from one 5 to the next. Some parents choose a name that sounds 6_ to them to help their child do well in the business world. Most parents, though, choose a name because __7_.The four categories of English-language surnames are: place names, 8___ , added names, and _9_ names. The most common occupation name is 10__.