题目内容
The research also raises the question ________ children from low-income, less educated families need earlier aid.
| A．what | B．that | C．when | D．whether |
D
解析试题分析：句意：这项研究也引起了这样一个问题，那就是处于低收入，少教育的家庭的孩子是否需要早期的援助。这里含有一个同位语从句，且引导词在从句中不作任何成分，但是有实际意义，表示“是否”，故用whether，选D。
考点：考查同位语从句
培优三好生系列答案She cared more about her students than her own health. That’s why two years passed _____ she was treated for breast cancer.
| A．since | B．before | C．after | D．until |
---When choosing furniture, you focus on function while I think more about the design.
---That’s_____we differ.
| A．how | B．what | C．which | D．where |
_____ New York _______ London are two of the largest cities in the world.
| A．Either; or | B．Both; and |
| C．Neither; nor | D．Not only; but also |
He kept yawning in class this morning. That is _____ he stayed up late doing his homework last night.
| A．why | B．how | C．because | D．whether |
— Shall Mary come to the concert with us？
－Not_____she has finished her paper．
| A．since | B．once | C．when | D．unless |
We have realized ________ she is expecting is just an opportunity to test her ability.
| A．that | B．which |
| C．what | D．where |