It was a light plane. It wasn't ____.
A.dark
B.heavy
C.black
D.deep
- · 有3位网友选择 C,占比33.33%
- · 有2位网友选择 B,占比22.22%
- · 有2位网友选择 A,占比22.22%
- · 有2位网友选择 D,占比22.22%
A.dark
B.heavy
C.black
D.deep
To the commander's great surprise, the helicopter a light plane and both pilots were killed.
A.coincided with
B.stumbled on
C.tumbled to
D.collided to
A.coincided with
B.collided with
C.ran into
D.joined to
The helicopter a light plane and both pilots were killed.
A) coincided with
B) stumbled on
C) tumbled to
D) collided with
The total mass of a light plane and the pilot is, the plane lands on a horizontal runway at speedand the pilot steps on the breaks, if the resistance is proportional to the time with the proportionality constant, what are (1) the speed of the plane after 10s; and (2) the distance the plane goes through in the same 10s?
A、0
B、1/2
C、1/4
D、1/8
The height of a light is measured from which reference plane?
A.Mean low water
B.Mean high water
C.Average water level
D.Geographical sea level
A.Crossing different time zones.
B.Changing light and activity levels.
C.Working longer hours.
D.Watching out of the plane for a long time.
Which of the following is NOT mentioned as a reason for the disrupted sleep of travelers?
A.Crossing different time zones.
B.Changing light and activity levels.
C.Working longer hours.
D.Watching out of the plane for a long time.
A.Follow the instruction he gets from the intercom.
B.After the plane takes off.
C.As soon as the light above the seats goes off.
D.When he gets the instruction from the Stewardess.
A camera lens is preferable to a pinhole because it can ______ .
A.offer a choice of planes of focus
B.gather more light rays
C.control the size of the image formed on the film
D.gather more light rays and bring them to a focus at a given plane
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