从事道路危险货物运输的驾驶人员、装卸管理人员、押运人员经所在地设区的市级人民政府（）

急性肾炎的病因绝大多数与下列哪种微生物感染有关

A．乙肝病毒

B．巨细胞病毒

C．β-溶血性链球菌

D．沙眼衣原体

E．葡萄球菌

下图为某生态系统的食物网，请据图回答：

若此图要表示一个完整的生态系统，则图中缺少的组成成分是（）部分和（）者。

Cause and effect is one way to explain things that happen around us. Many things happen because something caused or influenced them to happen. Sometimes it is hard to look at a cause and find out what causes the effect. It may help you to start with the effect and use your reasoning(推理的) skills. Think about all the things you know that could be reasons for the effect you can see.

For example, you may see someone putting on a heavy jacket. This is the effect. To look for a cause, think to yourself, “What would make someone put on a heavy jacket?” Maybe the person works in the penguin pen(企鹅圈养地) at a Sea World. Maybe the person is going to visit an ice skating rink where the air is kept very cold. All of these things could be a cause for putting on a heavy jacket.

Now, think about a second example. The effect is a boy named Abi has to go to the head teacher’s office. What are the possible causes? Maybe he bullied(欺负)another student. Maybe he is just being picked up early. Maybe he is being given a prize!

Here is another example for you to think about its cause and effect. Cait, 13, was trying to fall asleep when her 8-year-old brother,Doug, came into her room. He looked around a bit, but seemed really out of it. Then Doug went back into the hallway and stood there looking straight up at the hall light for quite a while. Little brothers can be very strange, this was really much too strange. Cait didn’t know what to do. Just then, Cait’s father appeared and explained that Doug was sleepwalking. What’s the cause and effect, could you tell?

小题1:According to the second paragraph, which of the following is an effect?

A．Someone will go outside into cold weather.

B．Someone works in the penguin pen.

C．Someone puts on a heavy jacket.

D．Someone will go to visit an ice skating rink.小题2:Abi has to go to the head teacher’s office. Which of the following isn’t the possible  cause?

A．He bullied another student.

B．He is going shopping.

C．He is being picked up early.

D．He is being given a prize.小题3: What was Doug doing when his sister Cait tried to fall asleep?

A．He was going outside

B．He was reading a story.

C．He was leep walking.

D．He was looking for his dad.小题4:Which of the following is cause and effect?

A．Tony got up and had a glass of water.

B．We came home and found him sleeping.

C．The ball was lost and a window was broken.

D．Tim was late again and his teacher got angry.小题5:What is the best title for the text?

A．Truth and lies

B．Work and sleep

C．Cause and effect

D．Life and dreams

明朝中期，桂林古田壮民大起义时的首领是（）。

A.韦朝威；吴凌云

B.吴凌云；覃万贤

C.韦朝威；覃万贤

D.刘永福；覃万贤

装置开车方案优化的内容包括除公用工程外的所有生产单元组成的路线。