创业首先是一种就业活动。

下列关于M型组织结构的说法，不正确的是（）。

A.M型结构由三个相互关联的层次组成

B.M型结构的第一个层次是最高决策层，主要职能是战略规划和关系协调

C.M型结构的第二个层次是由职能和支持、服务部门组成的

D.M型结构的第三个层次是围绕企业的主导或核心业务，互相依存又相互独立的各所属单位，每个所属单位又是一个H型结构

施工单位处置施工过程中产生的废水、废物的下列做法中，符合环境保护相关法律法规规定的是( )。

A．工业废水处理达标后排入河流
B．经当地环境部门许可，将废物用于外省工地
C．将清洗设备的废水回灌补给地下水
D．将施工中产生的危险废弃材料堆放到住宅小区临近垃圾场

根据国际部陆上地震队安全工作程序，在野外地震队进入正常施工后，营地饮用水需要每（）个月检验一次，水样必须在（）小时内送达分析实验室。

开放性阅读。

     The power of nature Wind, water, fire and ice-these powerful natural forces shaped the land of America

in the past. They are still changing it today.

     The Colorado River slowly cut through stone to make the Grand Canyon.

     Long ago, ice sheets cut Yosemite Valley and glaciers (冰川) were moving in Alaska.

     Rains and storms hit the land from time to time. Fires sometimes burn down forests and destroy the homes

of wide animals. This happened in Yellowstone Park in 1998.

     Dead volcanic (火山的) mountains such as Haleakala on Moui and Crater Lake in Oregon are beautiful to

look at. There are also several active volcanoes in the US, especially along the Pacific Coast. There are also

many earthquakes in this area. Scientists can do nothing to control earthquakes or volcanoes. This was shown

clearly on May 18, 1980. At 8: 32 that morning, Mount St. Helens in Washington State erupted (爆发). The top

of the mountain was blown off.

     Over 60 people-campers, scientists, journalists, and forest workers were killed. Hundreds of square miles

of forests were knocked down. In towns over 100 miles away, day suddenly became night. An ash cloud hid

the sun for many hours. Town and fields in Washington, Oregon, and Idaho were covered with dirty grey ash.

     Scientists knew that Mount St. Helens could erupt soon but no one could say when. And no one expected

the terrible strength of the eruption. Many people were surprised and weren't ready. Harry R. Truman, 84,

owned a small hotel in Mount St. Helens. Scientists had asked him to leave because the volcano was becoming

dangerous.

     Harry Truman would not leave his home. Now it is covered with many feet of dirty ash. A small cross

stands above the place where Harry probably died. Perhaps it is better that he did not see what happened to

Mount St Helens, the once beautiful lake, and the forests.

     But slowly, life is returning to the dead area around the mountain. Grass and small plant are beginning to

grow again. Deer and birds have been seen in the area. The land will never be the same as it once was. Perhaps

Mount St. Helens will erupt again but this is all part of nature's pattern of change, and man has little power to

control it. 

根据短文内容，判断下列各句的正(T)误(F)。

( )1. The Colorado River slowly cut through stone to make the Grand Canyon.

( )2. Long ago, ice sheets made Yosemite Valley and the Great Lakes, and glaciers are not moving in Alaska.

( )3. Scientists knew exactly when Mount St. Helens would erupt.

( )4. Harry was finally persuaded to leave his home.

( )5. Now the land is not the same as it once was.

北京皇家园林开始大规模建设是在（）。

A.辽金时期

B.元时期

C.明清时期

D.民国时期