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新闻职业道德包括职业理念、职业态度、职业纪律和 。
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皮皮学刷刷变学霸
举一反三
【单选题】When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.
A.
the intensity of the light
B.
checking the period and characteristics against the Light List
C.
the color，because the buoy will have only a red or a green light
D.
Any of the above can be used to identify the light
【单选题】—Please turn off the light. —OK, Mom. I won't leave the room ______ the light _____. [ ]
A.
when; on
B.
with; on
C.
with; off
D.
when; off
【单选题】When a chlorophyll molecule absorbs light, ( )
A.
all wavelengths are equally absorbed
B.
green light is maximally absorbed
C.
green light is not absorbed
D.
red light is reflected
E.
blue light is reflected
【简答题】When did the corpuscular theory of light prevail?
【单选题】When a light is first seen on the horizon it will disappear again if the height of eye is immediately lowered several feet.When the eye is raised to its former height the light will again be visible.T...
A.
Checking a light
B.
Raising a light
C.
Obscuring a light
D.
Bobbing a light
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