A: Unmanned vehicles are much better than manual in term of safe
distance.
B: Unmanned
vehicles are much better than manual in term of reaction time.
C: Unmanned vehicles can greatly reduce greenhouse gas emissions.
D: Unmanned vehicles can greatly increase greenhouse gas emissions.
举一反三
- The<br/>total reaction time of unmanned vehicles is about(). A: 0.6s B: 1.2s C: 0.3s D: 0.2s
- Using some ________ fuels ,such as natural gas, in vehicles can generally00a000a0reduce harmful pollutants and exhaust emissions.
- Unmanned aerial vehicles (UAV) are too expensive for anything but military budgets.
- ______ are the manned or unmanned vehicles which are designed to<br/>explore the space. A: Housing B: Dialects C: Spacecraft D: Bulls
- Natural gas vehicles have lower emissions compared with conventional cars running on diesel or gasoline．
内容
- 0
The problem of unmanned vehicles include_____?(). A: The<br/>cost is very high B: It can't be put into real commercial and home use. C: Safety<br/>is not enough. D: The<br/>algorithms are not complete.
- 1
The adoption of this measure will greatly reduce the ________ of greenhouse gas emissions (排放物), which may help slow global warming.
- 2
Which of the following titles is suitable for a research paper?with the key words “unmanned air vehicle” and “ engine” A: Design, build and test an unmanned air vehicle B: Improved efficiency of an unmanned air vehicle IC engine using computational modelling and experimental verification C: Unmanned air vehicles under external impact D: Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft
- 3
Which of the following titles is suitable for a research paper?with the key words “unmanned air vehicle” and “ engine” A: Design, build and test an unmanned air vehicle B: Improved efficiency of an unmanned air vehicle IC engine using computational modelling and experimental verification C: Unmanned air vehicles under external impact D: Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft
- 4
7. According to the Meatless Monday, what can people gain from eating less meat? A: Better physical conditions. B: Less household expenses on food. C: More greenhouse gas emissions. D: Less consumption of air.