鼻咽癌发病率居头颈部恶性肿瘤________。具有________、________

若aⁿ•b^-n=1（ab≠0），则a、b的关系为______．

“社会舆论对酗酒的谴责”对酗酒行为来说是一种（）

A.抑制因素

B.倾向因素

C.偏向因素

D.促成因素

E.强化因素

小题1:As Polly _______ the passengers on the train, she had a feeling that she was being watched by a tall man in a dark overcoat. At last the train arrived at Green Park station.

小题2:When Polly got to the station entrance, it was empty. Outside, _______ she looked the fog _______ like a thick, grey cloud. … The man moved away. She could feel her heart _______ with fear.

小题3:“Here we are. King Street.” He stopped.

“Thank you so much for coming to my _______,” said Polly in _______. “Would you like to come in and rest for a _______?”

小题4:Before the middle of the 5^th century, people in Britain all spoke a language called Celtic. Then two Germanic groups from the European _______—the Angles and the Saxons—_______ Britain. … Both the English language and the English people are _______ after the Angles; the word Angle was _______ Engle in Old English.

小题5:Modern English appeared during the Renaissance in the 16^th century. Because of this, Modern English includes many Latin and Greek words. _______ also went _______ huge changes during this period. Of course, this was not the end of the changes in the English language.

小题6:People started to dig in the area for treasure, which caused much damage. Thus, in 1860, the area was put under _______ protection so it could be _______ and studied.

小题7:I saw several houses which were _______ with wall paintings. I also saw the people who had been _______ alive.

小题8:A _______ from the local _______ institute, Professor Zhang, told us that around the year 1900 the European explorer Sven Hedin discovered the _______ of the Loulan Kingdom.

阅读材料，回答问题。（6分）

材料： 世界地质公园之一—黄山

黄山属花岗岩峰林景观。在距今约1.4亿年前，地下炽热岩浆在地壳薄弱的黄山地区上侵。在距今6500万年前后，黄山地区的岩体又发生了较强烈的隆升。

随着地壳的间歇抬升，这里的花岗岩体遭受风化、剥蚀，奇峰耸立（海拔千米以上的高峰有72座），怪石千姿百态，由此而成了黄山雄峻瑰奇的美景。

黄山多云海，每当雨过天晴，或在日出前后，山谷中就从雾云腾，铺天盖地而来。   

黄山的奇松、怪石、云海和温泉以“四绝”名扬天下。

（1）黄山雄踞于我国的      省南部山区，构成黄山秀丽风光的物质基础—花岗岩，按成因分类属于       。

（2）请从水汽凝结条件的角度，简要分析黄山云雾多出现的在雨过天晴之时或日出前后的原因。

全速航进的船舶斜顶风较斜顺风易于保向的原因是：（）

A.风动力矩与水动力矩方向相反，用小舵角产生的舵力矩即可克服偏转

B.风动力矩与水动力矩方向相同，用小舵角产生的舵力矩即可克服偏转

C.风动力矩与水动力矩方向相反，用大舵角产生的舵力矩即可克服偏转

D.风动力矩与水动力矩方向相同，用大舵角产生的舵力矩即可克服偏转