单项选择题

A．A shortage of insulin.
B．A shortage of water.
C．A heavy load of sugar.
D．A heavy load of urine.
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单项选择题
A．Two days.B．The whole month of December.C．Ten days.D．Only the first week of December.
A．Two days.
B．The whole month of December.
C．Ten days.
D．Only the first week of December.
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