某线路送有功10MW，送无功5MvAr，模拟C相接地短路，零序方向继电器的动作情况是

阅读理解。根据要求完成下列各题。

        Mars is the fourth planet from the sun and is commonly known as the Red Planets. The rocks, soil and sky

of it are a little red or pink. Its name was given by the Romans in honor of their god of war.

        People on the earth need oxygen to breathe. There is almost no oxygen on Mars. Living on Mars would be

like living on a very high mountain. There would be little air. It might be 50 degrees above zero at noon and 100

degrees below zero at night. We know that Mars has carbon. Through a telescope, Mars looks red. In some

places, it seems gray. At times the gray turns gray-green, then brown, then gray again. The gray-green may be

a kind of plant color which changes with the seasons.

        Life is expected on Mars by scientists, because there are distinct seasons on the planet's surface. This

condition might support plants. However, some researches find if Mars had life, it must have been a long time

ago. For Mars' first 600 millions years, it had plenty of water and proper temperatures for life. But now the

planet's environment has changed. Mars is not a pleasant place for any form of life.

1. 根据解释，在短文中找出相应的单词或短语。

    ______: famous        ______: sometimes

2. Its name was given by the Romans in honor of their god of war.

(改为主动语态的句子) __________________________________________________________________

3. Why is life expected on Mars by scientists?

(回答问题) __________________________________________________________________

4. There is almost no oxygen on Mars.

(改为反意疑问句) There is almost no oxygen on Mars, _____ _____?

5. But now the planet's environment has changed. Mars is not a pleasant place for any form of life.

(翻译成汉语) __________________________________________________________________

17世纪的荷兰之所以能确立海上优势，成为“海上马车夫”，与下列哪个因素无关

A．荷兰人从事海上商业活动历史悠久

B．取得国家独立并建立了先进的政治制度

C．工业资本发达，经济实力雄厚

D．荷兰政府的支持

锅炉进行水压试验，有下列（）中全部符合的情况下为合格。

①试验期间压力下降较多；

②在受压元件金属壁和焊缝上没有水珠和水雾；

③铆缝和胀口处，在降到工作压力后不滴水珠；

④水压试验后，没有发现残余变形。

A.①②③；

B.①②④；

C.①③④；

D.②③④。

在连接件上，剪切面和挤压面为（）。

A．分别垂直、平行于外力方向

B．分别平行、垂直于外力方向

C．分别平行于外力方向

D．分别垂直于外力方向

1995年9月，范某携家眷出国，将自己所有的一套房屋交给宋某居住，并与宋某言明如果自己5年内不回国就将该房送与宋某。2000年11月，宋某见范某出国后至今没有音讯，认为其私房已属自己所有，便将房屋出租给王某，并与王某签订了为期3年的房屋租赁合同。2002年3月，范某突然回国，找到宋某要求交还自己原有的房屋，两人因此发生争执。范某遂以宋某为被告向法院提起诉讼。法院经调查后发现，双方的争执的房屋现在由王某租住，于是通知王某参加到本案中来，请问，王某在本案中的诉讼地位是：

A．原告

B．被告

C．有独立请求权的第三人

D．无独立请求权的第三人