In the absence of visual cues, the resting focal length of the eye is approximately? （0.5分）
1-2m
举一反三
- The depth of field depends on ______. A: aperture B: the distance between camera and subject C: the size of the subject D: the focal length of the lens
- The focal length of the lens is more suitable for shooting close-up portraits is _____. A: 24~105mm B: 24~70mm C: 85~135mm D: 70~200mm
- To operate safely in IMC, a pilot controls the aircraft relying on ______, and ATC provides separation. A: instruments B: senses C: visual cues D: experience
- With good visibility, pilots can determine the attitude of the aircraft by utilizing _______ from outside the aircraft. A: instruments B: sensations C: visual cues D: experience
- Good content should be A: well-structured B: audience-centered C: approporiate in length D: visual aid
内容
- 0
_________ could indicate that you are going to end your speech. A: Signpost language and gestures B: Facial expression C: Visual aids D: Eye contact
- 1
_____ is the focal point in an opera house?
- 2
Speech carries symbolic cues, not only through _____________ and _____________ cues, but also through _____________ qualities.
- 3
Which of the following can be found in presbyopia? ( ) A: Opacity of the lens B: Increase of stiffness of the lens C: Decrease of elasticity of the lenticular capsule D: Decrease of the axial length of the eye
- 4
The passage is mainly concerned with ______. A: the importance of eye contact B: the potency of non-verbal techniques C: successful speech delivery D: an effective way to gain visual feedback