问题
单项选择题
1，8，22，50，99，（）
A．120
B．134
C．142
D．176
答案
参考答案：D
解析：
本题属于三级等差数列，解答过程如下图。
搜题请搜索小程序“爱下问搜题”
1，8，22，50，99，（）
A．120
B．134
C．142
D．176
参考答案：D
解析：
本题属于三级等差数列，解答过程如下图。
| 从方框中选择单词或短语并用其适当形式填空 | |
—They're in the________. 2. I started walking, but I knew I could not gel to the factory _______. 3. —What happened yesterday? —A big noise________me_______ . 4. This morning John_________ and he had to take a taxi to his office. 5. Luckily, my English teacher _________ shared her umbrella with me. |