单项选择题

A．To see what happened to the survivors of the disease.
B．To study animals that can also get infected with the disease.
C．To look for the plants that could cure the disease.
D．To look for the plants that could cure the disease.
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单项选择题
A．To determine whether the Earth’s temperature is going up.B．To study the behavior of some sea animals.C．To measure the movement of waves in the ocean.D．To measure the ovement of waves in the ocean.
A．To determine whether the Earth’s temperature is going up.
B．To study the behavior of some sea animals.
C．To measure the movement of waves in the ocean.
D．To measure the ovement of waves in the ocean.
单项选择题
A．They locked the couple up in the drawing room.B．They seriously injured the owners of the house.C．They smashed the TV set and the telephone.D．They took away sixteen valuable paintings.
A．They locked the couple up in the drawing room.
B．They seriously injured the owners of the house.
C．They smashed the TV set and the telephone.
D．They took away sixteen valuable paintings.
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