用适当的介词填空。

1. The girl ________ golden hair looks beautiful.

2. They talked _______ a low voice in order not to wake the baby up.

3. —Excuse me. Do you have the right ticket _______ this seat?

    —Oh, sorry. I have taken a wrong seat.

4. The mother held her son ________ her arms and cried with joy.

5. All the audience watched Liu Qian perform the trick _______ great interest.

类似渐进式创新，目的是迎合既有市场和顾客的创新方式是（）。

A.探索性创新

B.开发性创新

C.开放式创新

D.根本性创新