小题1:___________can take part in the English Summer Camp.

A．Students under 13

B．Students aged 16

C．Students over 18

D．All the students小题2:The English Summer Camp lasts

A．9 days

B．16 days

C．18 days

D．26 days小题3:There are ______ways for you to register for the English Summer Camp.

A．one

B．two

C． three

D． four小题4:You can go to register on

A．August 1 st

B．August 6th

C．August 9th

D．August 26th小题5:You can _______by joining in the English Summer Camp

A．visit the whole country

B．become an experienced teacher

C．improve your Chinese

D．know about British customs

药效学的药物相互作用中的非竞争性拮抗作用是

A．作用物与拮抗物作用于同一受体

B．作用物与拮抗物不是作用于同一部位

C．作用物与拮抗物作用于同一部位

D．作用物与拮抗物不是作用于同一受体

E．作用物与拮抗物不是作用于同一受体或同一部位