问题
单项选择题
妊娠合并巨幼红细胞性贫血的防治哪项是错误的：
A．加强孕期营养，合理搭配饮食
B．妊娠期可给予维生素B12肌注
C．给予口服叶酸
D．血色素＜70g/L可少量间断输新鲜血
E．经治疗效果不佳可考虑是否有缺铁存在
答案
参考答案：D
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妊娠合并巨幼红细胞性贫血的防治哪项是错误的：
A．加强孕期营养，合理搭配饮食
B．妊娠期可给予维生素B12肌注
C．给予口服叶酸
D．血色素＜70g/L可少量间断输新鲜血
E．经治疗效果不佳可考虑是否有缺铁存在
参考答案：D
Animals, including insects, don’t have a ‘language’ like ours. They do not ‘talk’ to each other in words and sentences. But if we watch them, we can see that they do have their ways of communicating (交流) with each other. Can you see the rabbit’s tail? When rabbits see this white tail moving up and down, they run away. They know that they are in danger. The rabbit has told them something without making a sound. It has given them a signal. Many other animals use this kind of ‘language’. When a cobra（眼镜蛇）is angry, it raises its head and makes itself look powerful（有力的）. This warns other animals. When a bee（蜜蜂）has found food, it goes back to its home. It cannot ‘tell’ the other bees where the food is by speaking to them, but it does a little dance. This tells the bees where the food is. Some animals ‘say’ things by making sounds. A dog barks, for example, when a stranger comes near. A cat purrs when it is pleased. Some birds make several different sounds, each with its own meaning. Sometimes we human beings speak in the same way. We make sounds like “Oh” or “Ah” when we are frightened or pleased or when we drop something on our toes. 小题1:Which one is TRUE according to the passage?
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