根据句意，用适当的介词填空。

1. Dad, could you take me _______ the concert?

2. You needn’t worry _______ me; I’m not a child.

3. My life has changed a lot _______ the last few years.

4. It’s really relaxing to chat ________ my grandfather.

5. I’m too busy these days. I hardly have any time _______ a rest.

用于胃切除后引起的缺铁性贫血( )

A．切脾术

B．糖皮质激素

C．雄激素

D．右旋糖酐铁注射

E．输血