You are underway and pass by a lighthouse.Its light,which was white since you first sighted it,changes to red.This means().
White、Gautheret和Nobecourt在1939年确立的植物组织培养的基本方法,成为以后各种植物组织培养的(),他们三人被誉为植物组织培养的奠基人。
From your position you observe a rotating white and green light to the north. This light is most likely().
A jar contains 54 marbles each of which is blue, green, or white. The probability of selecting a blue marble at random from the jar is 1/3, and the probability of selecting a green marble at random is 4/9. How many white marbles does the jar contain?
This image of the fairy as _______ creature dressed in white goes back to about the seventeenth century.
White smoke exhausting from a diesel engine can be caused by ()
We saw him()the white building and go upstairs.
A vessel showing a yellow light over a white light at night is a vessel().
While loading cargo,a white trimming light on the starboard side comes on. This indicates that().
The cross-head shoes are white metal lined, grooves being cut horizontally on the face of the white metal to ensure ().