May Day is coming. What plan do you have for it, Eric?

I’m going to Yunnan.  1  .

Really? Great. Are you going with your parents?

  2 .So I’m going with my mother. What about you?

 3 But my parents say it’s dangerous.

Then what are you doing?

A.   4  .

B.   Great. You can visit Cambridge University—my favorite university. But the weather there is changeable(多变).  5

技术分析的四维空间是指（）

A、价格

B、成交量

C、时间

D、空间