One reason it is difficult to
2019-08-12 11:59 自考365
One reason it is difficult to know why the whales are dying is that ____.
A．the whales travel such a long distance
B．there are more whales than there used to be
C．the whale bodies are too old to study by the time they are found
D．the whales are endangered
A．the whales travel such a long distance
B．there are more whales than there used to be
C．the whale bodies are too old to study by the time they are found
D．the whales are endangered
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