单项选择题

The passage is about________.

A．poison control centers and doctors
B．bathing from a container or in a shower
C．the effect of water temperature on eyeballs
D．first-aid treatment of eye problems
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单项选择题
The main purpose of the research is________.
A．to make preparations for a new publication
B．to learn how couples spend their weekends
C．to know how housework is shared
D．to investigate what people do at the weekend
单项选择题
According to the conversation, Mr Johnson is NOT very strong in________.
A．history
B．geography
C．mathematics
D．art
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