电除尘器可分为哪些类型？对于烧结废气的除尘，适合采用哪种类型的电除尘器？

下列各项词语中,加线字的读音全都正确的一项是（   ）

A．怂恿（yǒng）畏葸 (xǐ)搠倒（sù）云销雨霁（jì）

B．肖像（xiāo）付梓（zǐ）锱铢必较(zī)钟鼓馔（zhuàn）玉

C．岑寂（cén）媲（bì）美氽泳（tǔn）模棱两可（léng）

D．赍发(jī )迤逦(yǐ)不落言筌（quán）博闻强识（zhì）

You are what you eat

Keeping better eating habits can help you have less illness. A healthy eating plan means choosing the right food to eat and cooking food in a healthy way.

___________

Do you often change your toothbrush? Maybe you think it is unnecessary. A study shows old toothbrushes bring disease(病菌). You should often change your toothbrush.

Exercise

Swimming, cycling, jogging, skating, dancing, walking and some other activities can help you stay healthy. You should exercise at least three times a week and for twenty minutes or more each time. Do it!

Plan out your life

You should have breakfast before you go to school. Have a right meal for lunch. Follow a healthy diet.

小题1:What’s the passage mainly about?

A．Healthy food.

B．Healthy lifestyle.

C．Junk food.

D．Healthy sports.小题2:What is the best title for the second passage??

A．Man’s disease.

B．Disease.

C．Your toothbrush.

D．Your bathroom.小题3:How long should you exercise each time?

A．Twenty-five minutes.

B．Fifteen minutes.

C．Five minutes.

D．Ten minutes.小题4:From the passage, we know __________ can help us stay healthy.

A．right diet

B．exercise and right diet

C．sleep

D．exercise小题5:What does a healthy plan mean?

A. Choosing the right food.             B. Cooking the food in a healthy way.

C. Never eat meat or fresh vegetables.      D. Both A and B.

大于1的正整数m的三次幂可“分裂”成若干个连续奇数的和，如2³＝3＋5，3³＝7＋9＋11，4³＝13＋15＋17＋19，…若m³分裂后，其中有一个奇数是103，则m的值是（    ）

A．9

B．10

C．11

D．12

患儿女，10岁。咽痛、乏力、食欲缺乏1周后出现反应迟钝、高热，体温持续在39.1～39.7℃。入院查体，体温39.5℃，心率70次/分，胸前有淡红色小斑丘疹，B超示肝、脾大。

患者开始逐渐增加活动量的时间是体温正常后

A．1天
B．3天
C．1周
D．2周
E．3周

干粉灭火剂灭火的主要机理是（）。

A.降低氧浓度

B.降低温度

C.化学抑制

D.降低氧浓度和冷却