填空题

Compared with bony fish, what’s unique about tiger sharks when they bear offspring

【参考答案】

Some sharks have as few as two offspring at a time．
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A．Because she was arrested and imprisoned.B．Because a white mob attacked the school.C．Because she was afraid that the students would be killed or badly injured.D．Because a law was passed making it illegal to provide a free education for black students.
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B．Because a white mob attacked the school.
C．Because she was afraid that the students would be killed or badly injured.
D．Because a law was passed making it illegal to provide a free education for black students.
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