Ogilvie promised to keep quiet about what he knew with nothing in return from the Duke and the Duchess.
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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
本来在海水生活中的,可以在接近淡水的水中生长,如中国对虾。
A. 对
B. 错