儿童喉 * * 状瘤的常见症状是（）。 A.进行性声音嘶哑 B.喉鸣 C.呼吸困难 D.喉

Dinner customs are different around the world. If you are a guest in Ghana( 加纳), this information will help you a lot.

In Ghana, dinner is usually from four in the afternoon to six in the evening. But there are no strict rules about time. Whenever a guest arrives, a family offers food. When you go to a home, the person who receives guests takes you to the living room first. At this time everyone welcomes you. Then you go to the dinning room. There you wash your hands in a bowl of water. All the food is on the table.

In Ghana you usually eat with your fingers. You eat from the same dish as everyone else .But you eat from one side of the dish only. It is not polite to get food from the other side of the dish. After dinner, you wash your hands again in a bowl of water.

Most meals in Ghana have a dish called fufu. People in Ghana make fufu from the powder(粉末) of some plants. Sometimes they cut the fufu with a saw(锯子) because it is very hard. You must chew(咀嚼) fufu well, or you may get sick. You eat fufu with the fingers of your right hand only.

小题1:From the passage we know that in Ghana ______________.

A．the rules for dinner time are not strict

B．dinner is always at six in the evening

C．a family offers food only at four in the afternoon

D．people usually invite their guests to dinner late in the evening小题2:People in Ghana usually eat ________.

A．from one side of a dish to the other

B．from the other side of the dish

C．with their fingers

D．with their spoons小题3:In fact, most dishes in Ghana _______.

A．are cooked with the powder of some plants

B．have fufu in them

C．are too hard to eat

D．are not very hard小题4:When you eat fufu, you’d better _________.

A．cut it with a saw

B．use your right hand only

C．chew it well

D．all of the above

请你辨析，男女之间不可能建立纯真的异性友谊，因此男女之间要尽量减少交往。

________________________________________________________________________________

下图是自然界中氮的循环图。请根据图回答下列问题

(1)循环过程中属于氮的固定的是______（填序号）。

(2)日本东京和美国洛杉矶都曾发生过严重的光化学烟雾事件，你认为主要是由于循环图中的过程_______________造成的。

(3)写出过程①所发生的一系列化学反应方程式____________________

(4)如果空气中同时含有较多的二氧化硫，那么，过程①引起的自然灾害是__________________。

(5)深入研究过程②的机理对人工固氮有何积极意义？_______________________

(6)过程⑦在地表上发生时，若人为地造成过程⑦过度的发生，会造成__________________，常见的人为因素有_________________，后果是______________________。

(7)根据氮在自然界中的循环，分析人类在优化氮的循环、减少与之有关的自然灾害过程中可做哪些工作？ ________________________

什么是刑法中的因果关系？如何认定危害行为与危害结果之间的因果关系？

仪表检验报告需要哪些人签字？