连词成句。

1. that, a, is, school.

_______________________?  

2. ruler, it, a, is.

_______________________?  

3. English, this, in is, what.

________________________?  

4. his, it, dictionary, isn’t.

_________________________?  

5. you, do, game, how, spell.

__________________________?

维生素K参与合成

A．凝血因子Ⅷ、Ⅺ和Ⅻ

B．凝血酶原和凝血因子Ⅶ、Ⅺ、Ⅹ

C．血管活性物质

D．血小板

E．凝血因子Ⅷ