患儿，2岁。发热7天，壮热，体温40℃，昼轻夜重，唇干赤裂，烦躁不宁，肌肤斑疹。诊断

根据短文判断下列句子的正(T)误(F)。

    Yesterday was Saturday. My family all went to the amusement park. There were many people there. I

was too happy, so I played with the clown(小丑) by myself all day. I was missing. My father and my moth

-er looked for(寻找) me anywhere. But they couldn't find me. At that time, I cried harder at the amusemen

-t park.

    The policeman found me and asked me,"Why do you cry?  Why is there only one?"I told him all the thin

-gs. At last,he helped me find my father and my mother.

( ) 1. I played with my family.

( ) 2. I went to the safari park.

( ) 3. My father and my mother coundn't find me at last.

( ) 4. The policeman found me at the amusement park.

( ) 5. I don't like playing with my father and my mother at the safari park.

测量电气设备的泄漏电流比兆欧表发现电气设备的绝缘缺陷的有效性高，这是因为微安表的灵敏度高。

气环的开口是（）泄漏的通道，因此应该严格控制开口（）。

简述吊卡使用方法及注意事项。