A: It will stop automatically.
B: It will move on at the same speed.
C: It will gradually slow down
D: It will keep a safe distance from the other trains
举一反三
- Passage comprehension I-24 A: To drive the train after it started automatically. B: To start the train and to drive it when necessary. C: To take care of the passengers on the train. D: To send commanding signals to the command spot,
- Every vessel should at all times proceed at a safe speed. Safe speed is defined as that speed where ____.
- 中国大学MOOC: Two spaceships move with same speed 0.80c relative to the Earth, but in opposite directions. What is the speed of one ship relative to the other? (c is the speed of light in vacuum)
- Two spaceships move with same speed 0.80c relative to the Earth, but in opposite directions. What is the speed of one ship relative to the other? (c is the speed of light in vacuum) A: 0.80c B: 0.976c C: 0.994c D: 1.60c
- s ________：to happen at the same time or to move at the same speed as something
内容
- 0
The bomb was taken away and the soldiers ____________ it at a safe distance from the houses.
- 1
When you announce your opinion in your speech, you’d better___________ . A: speed up a bit B: slow down a bit C: keep your pace of speech unchanged D: lower the volume of your voice
- 2
The interpreter should use _____ speed and should slow down appropriately at key information points.
- 3
Every vessel should at all times proceed at a safe speeD。 Safe speed is defined as that speed where ______。( ) A: A. you can stop within your visibility range B: B. you can take proper and effective action to avoid collision C: C. you are traveling slower than surrounding vessels D: D. no wake comes from your vessel
- 4
Pistons may be made in （） in order to keep the weight down for balancing purposes at high speed.