吃不到葡萄说葡萄酸是心理防卫中的
A．退化B．合理化C．潜抑D．否认E．转移
参考答案：B
Read and write.（把下列句子变为否定句。）
1.1 was thin then.
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2.She was tall.
3.It was fat then.
4.They were short.
什么是泥石流？形成泥石流必须具备的条件？
