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147. When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
A. Change to a high gear and pass rapidly
B. Constantly observe the changes of the flow
C. Prepare to stop at any time
D. Change to a low gear and pass through at a constant speed
Answer：D
Previous question: 146. What is the most frequent problem for driving on a muddy road?
Next question: 148. When evading an emergency, except for being calm what principle should be held by drivers?
2026年摩托车科目四英文版题库共345题，你可以免费查看前50题，完整版题库请添加微信购买：
The English version of the 2026 motorcycle subject 4 question bank has a total of 345 questions. You can view the top 50 questions for free. Please add WeChat to purchase the complete version of the question bank.
科目四试题
- What is the meaning of this sign?
- What should the driver do when he/she encounters an oncoming ambulance in the same lane?
- What needs attention when a motor vehicle drives on a road covered with ice and snow?
- What is the meaning of this sign?
- How to reduce speed or stop when driving on a road covered with snow and ice?
- What should be checked before driving?
- What is the meaning of this sign?
- What influence does smoking have upon driving?
- When the tire pressure is too low, what will happen if the tire changes its shape in waves and increases in temperature due to fast movement?
- When two vehicles approach each other on a foggy day, what is the best method of safe driving?
- When there is bleeding at the bone fracture of a wounded person, the first thing to do is to fix the wounded part in position, then stop the bleeding and dress the wound.
- When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?
- What is the meaning of this sign?
- When a wounded person is under the wheel or cargo, the wrong method is to pull the limbs of the wounded.
- How should lamps be used by the motor vehicle driver who follows a vehicle on a road section at night where he street light condition is good?
- What is the meaning of this sign?