--Please tell the court what really happened.

--Oh, I ____ , and I hit a parked car.

A．wouldn’t pay attention

B．hadn’t paid attention

C．haven’t paid attention

D．wasn’t paying attention

K₂CO₃、CaO双磺防塌钻井液属弱凝胶体系，触变性（）。

A、很差

B、较差

C、好

D、没有