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