按要求改写句子，每空一词。

1. I can find a picture and some flowers in the room. (对画线部分提问)

    _____________ can _____________ find in the room?

2. They arrived at the bus stop. (改为一般疑问句)

    _____________ they _____________ at the bus stop?

3. She cooks some vegetables. (用现在进行时改写句子)

    She _____________ _____________ some vegetables.

4. She always walks to work. (改为一般疑问句)

    _____________ _____________ always walk to work?

5. I would like toast and jam for supper. (对画线部分提问)

    _____________ would you _____________ for supper?

曲线某点的拨量为6mm，其前后两点正矢的影响量为（）。

A、前后两点和为6mm

B、前后两点各为-6mm

C、前后两点和为3mm

D、前后两点各为-3mm