As time goes on the organic material is buried deeper and hence()higher temperatures and pressures.
A、is made up of
B、is absorbed in
C、is exposed to
D、is known as
A、is made up of
B、is absorbed in
C、is exposed to
D、is known as
A、only when the cargo is within its rail B、during the time when loading or unloading is going on C、after the cargo is checked by tallymen D、as soon as loading or discharging begins
A、only when the cargo is within its rail B、during the time when loading or ynloading is going on C、after the cargo is checked by tallymen D、as soon as loading or discharging begins