问题
单项选择题
12，15，15，24，6，( )
A．8
B．27
C．44
D．69
答案
参考答案：D
解析： 三级等差数列变式。
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搜题请搜索小程序“爱下问搜题”
12，15，15，24，6，( )
A．8
B．27
C．44
D．69
参考答案：D
解析： 三级等差数列变式。
[*]
| 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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