As the Duke and the Duchess didn't know that they had killed a woman and her child, they did not stop the car and just drove away.
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Ogilvie promised to keep quiet about what he knew with nothing in return from the Duke and the Duchess.
A. 对
B. 错
The Duchess first tried to deny the fact that they killed the woman and her child.
A. 对
B. 错
经过驯化,本来在淡水的种类可以在海水中生长,例如罗非鱼。
A. 对
B. 错
广盐性鱼类对渗透压的调节能力很弱。
A. 对
B. 错
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