风烟俱净，天山共色。从流飘荡，任意东西。自富阳至桐庐，一百许里，奇山异水，天下独绝。
      水皆缥碧，千丈见底。游鱼细石，直视无碍。急湍甚箭，猛浪若奔。夹岸高山，皆生寒树。负势竞上，互相轩邈；争高直指，千百成峰。泉水激石，泠泠作响；好鸟相鸣，嘤嘤成韵。蝉则千转不穷，猿则百叫无绝。鸢飞戾天者，望峰息心；经纶世务者，窥谷忘反。横柯上蔽，在昼犹昏；疏条交映，有时见日。

阅读下面短文，在短文的空格内填入适当的词，使其内容通顺。（每空格限填一词）

 Indians always shake their heads when they talk to others. It does not have the same meaning as our “ ____   “. If someone wants to visit  India, he should know this or it will give him some   ____  .

 One day, a foreign officer went to India on business. He hired （雇用）a car and an Indian driver. When he told his driver to take him to his office, the driver shook his head at once. The officer ____  his order and the driver shook his head again. At last, the officer, of course, got  ____ 。

“How dare（敢）you refuse my order?” he  ____   , “Drive me to the office at once!”

 The driver answered in a very loud voice too. “Yes, sir.” But to the officer's surprise, the driver shook his head at the same time.

 The car started and the officer was now so surprised that he ____   say a word. He thought about it for a while and nodded with a smile, " 'No' means 'Yes' here!”

A的 $\frac{2}{3}$ 相当于B的 $\frac{3}{4}$ ，A∶B= $\frac{3}{4}$ ∶ $\frac{2}{3}$ 。

2008年5月12日，四川汶川发生了里氏8.0级地震，全国人民抗震救灾，众志成城。为确保大地震之后无大疫，卫生部门用优氯剂、漂白粉等对饮用水等进行消毒。