The cockpit is provided with _____ insulation.
A: radio
B: heat and sound
C: infrared ray and ultraviolet ray
D: sunlight
A: radio
B: heat and sound
C: infrared ray and ultraviolet ray
D: sunlight
举一反三
- The accumulation of greenhouse gases (GHGs) causes global warming by letting sunlight into the atmosphere as _______. Then, when the earth re-radiates the heat back to space, the gases trap the energy in the form of outgoing ______. A: visible light, ultraviolet radiation B: infrared radiation, ultraviolet radiation C: ultraviolet radiation, infrared radiation D: infrared radiation, radio waves
- ( ) can not be found in the following photo A: Libriform cell B: Vessels C: Ray cells D: Ray tracheid
- What was Ray?
- 7 A. Ray never sends text messages during class. B. Sometimes Ray sends text messages during class. C. Ray sends text messages often during class.
- Ray-Ban的含义是指（） A: Ray为眩光 B: Ray为时尚 C: Ban即阻挡 D: Ban即色彩