What can you find in a typical full English breakfast（）
A. eggs and tomatoes
B. sausages and mushrooms
C. baked beans and black pudding
D. all of the above
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妊娠末期，孕妇若较长时间取仰卧姿势，可导致（）
A. 黑加征
Braxton Hicks
C. 席汉综合征
D. 仰卧位低血压综合征
According to the situation of accident loss, it can be divided into（）
A. minor accident
B. general accident
C. major accident
D. serious accident
The following factors are not the most obvious factors affecting the driving safety of road surface:（）
A. flatness
B. skid resistance
C. drainage
D. friction
Collect information about which traffic flow features.（）
A. flow rate
B. vehicle speed
C. queue length
D. running time
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