Water vapor __________ on a window pane produces condensation.
A、which accumulating
B、accumulating
C、accumulates
D、is accumulating
A、which accumulating
B、accumulating
C、accumulates
D、is accumulating
A、A. Sui, Tang
B、B. Tang, Song
C、C. Song, Yuan
D、D. Ming, Qing
A、close to one another.
B、far apart from one another.
C、both next to the F factor.
D、both oriented in the same direction.
A. lies between dura matter and arachnoid
B. up to subarachnoid space in the skull by the foramen magnum
C. down the the height of the fifth sacral vertebral
D. terminal cistern is formed by the space below the second sacral vertebral
E. the fluid in it can communicate with that in the center canal of spinal cord directly
A、its
B、their
C、his
D、our
A、will direct
B、directs
C、directing
D、direct
A、on
B、in
C、inside
D、over
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