单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．He doesn’t have a computer.
B．He can’t understand the instructions.
C．He needs to take his computer to be repaired.
D．He has a Doctors’ degree in computer science.
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单项选择题
What is the major reason why some doctors give patients potassium chloride
A．It is used as medicine.
B．It contains no sodium.
C．It makes food tasty.
D．Human body can easily absorb potassium chloride.
单项选择题
Which of the following is the main topic of the passage
A．The difference between sodium chloride and potassium chloride.
B．The function of slat in daily life.
C．A comparative study of slat consumption habits in some countries.
D．The relationship between salt consumption and high blood pressure.
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