单项选择题

Which of the following situations will cause the death of a child.'（）

A．The child clears its body of bacteria.
B．The body loses liquids without any control.
C．The child has diarrhea in a developing country.
D．The body controls its fluid levels.

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单项选择题

According to the passage, a large number of Children can be saved only when（）

A．the life-saving ways are medically effective
B．their parents are rich enough for the life-saving techniques
C．the life-saving techniques are easy to use
D．their parents learn the life-saving techniques

单项选择题

When the mixture is used, it is important to （）

A．keep sugar and salt in water
B．drink it as often as necessary
C．take it as much as possible
D．use it to kill the bacteria