问题
单项选择题
道路石油沥青及建筑石油沥青的牌号是按其（）划分的。
A.针入度
B.软化点平均值
C.延度平均值
D.沥青中油分含量
答案
参考答案：A
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道路石油沥青及建筑石油沥青的牌号是按其（）划分的。
A.针入度
B.软化点平均值
C.延度平均值
D.沥青中油分含量
参考答案：A
| 选择方框中的句子，补全对话。 | |
| W: Can I help you? M: Yes, I want to buy a skirt for my daughter. 1_____________ W: I'll show you. 2_______________ M: Thanks. W: 3__________________ M: I don't think she likes the colour yellow. She likes red very much. W: OK. Here is a red one. M: It's nice. 4_____________ W: It's fifty dollars. M: That's OK. 5____________ Here's the money. W: Thanks.
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