直接放大摄影原理的主要依据是A．光学原理B．化学原理C．物理学原理D．几何学原理E．感光学原理

A．until

B．by

C．that

D．from

A.until

B.that

C.by

D.from

A.drying

B.enough dried

C.enough dry

D.dry enough

Which of the following actually prevents dirt and leaves from falling inside the tank？

A．a barrier

B．a wire screen

C．a first-flush

D．a storage tank

Which of the following photographs of Dine's leaves the deepest impression on the author？

A．Pictures of graffiti on walls.

B．Photographs of his poetry.

C．Shots of his well-used tools.

D．Pictures of ravens and owls.

A、mince pie

B、Christmas pudding

C、candy cane

D、cracker

Which o{ the following photographs of Dine's leaves the deepest impression on the author？

A．Pictures of graffiti on walls.

B．Photographs of his poetry.

C．Shots of his well-used tools.

D．Pictures of ravens and owls.

Which of the following actually prevents dirt and leaves from falling inside the tank？

A．a barrier

B．a wire screen

C．a first-flush

D．a storage tank

Which of the following is mentioned as a benefit of walking？

A．It is beneficial to your heart and lungs.

B．It helps to build strong upper body muscles.

C．It puts no stress on your joints.

D．It does no harm to the bones.

Which of the following is mentioned as a benefit of walking？

A．It is beneficial to your heart and lungs.

B．It helps to build strong upper body muscles.

C．It puts no stress on your joints.

D．It does no harm to the bones.