洗净期
参考答案:洗净期是指两次试验周期之间的间隔时间或交叉试验时,各次用药间隔的时间。
Two frogs lived in a small village. One day they _小题1:_ to see what the big city was like. The city was about ten miles __小题2:__. It was a hot day, and they soon began to ___小题3:___ tired. They had only gone a little way when the big one said to the small one. “We are so tired. Is the city __小题4:__ very far? Can you see it?”
“No,” said the small frog, “but __小题5:__ I get on your back, I can see it.” Then he ___小题6:__ up on the back of the big one.
__小题7:_ the small frog put up his head, he couldn’t see very far. He could only see their village.
“Can you see the city?” asked the big frog.
“Yes, I can see it. It looks just ___小题8: our village,” answered the small frog.
Then the frogs thought that they didn’t __小题9:_ to go any farther. They went back, and told the other frogs in their village that they saw the big city and it was just like __小题10:__.
须予以隔离治疗的患者是
A.鼠疫、霍乱和炭疽 B.甲类传染病病人和病原携带者、乙类传染病病人中的艾滋病病人、炭疽中的肺炭疽病人 C.对疑得甲类传染病病人 D.对除了艾滋病病人、肺炭疽患者以外的乙类传染病病人 E.丙类传染病病人