单项选择题

According to the passage, ________.

A．four types of the blood were discovered by Japan
B．people of good blood might do their work very well
C．knowing your own blood group you could get a good idea
D．more and more countries accepted the new idea about blood group

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热门试题

单项选择题

People belonging to blood group B might be good at ________.

A．sports and games
B．smoothing away difficulties
C．doing office work
D．painting and writing

单项选择题

This passage is mainly about ________.

A．the origin (起源) of blood groups
B．the effect of the blood group ,on personality
C．the secret of blood group
D．the new skill of hiring people