根据《YD5072-2005通信管道和光（电）缆通道工程施工监理规范》，在工程施工阶

利用PAD避让适用于（）

A、进出港口成狭水道

B、交通稀的开阔海域

C、交通交通密集的海域

D、分道通行制海域

影响外呼吸的因素是（）

A.细胞的能量需求

B.肺泡的功能

C.全身循环状态

D.血液气体状态

E.组织微循环状态

下面图甲示意我国某区域的水系分布。某学校研究性学习小组对该图中的M地进行实地考察，并查阅了相关资料，发现近三十年来M地生态环境明显改善。图乙示意M地的等高线分布，下表示意M地的土地利用结构变化。读图表回答下面问题

 

	耕地	林地	草地	荒地	其他
1978年	55.0%	19.8%	4.9%	15.4%	4.9%
2008年	40.2%	44.1%	6.2%	1.3%	8.2%

小题1:描述M地的地形和气候特征。

小题2:根据材料分析M地生态环境原因和对R河水文特征的影响。

小题3:从可持续发展的角度，请你就M地农业发展方向阐述自己的观点。

天平的最大称量，表示天平可称量的（）。

A.质量最大值

B.体积最大值

C.重量最大值

D.最大载荷的80％

Holidays are special times of (1) from work and other routines. Holidays are often times for celebration, (2) , eating, drinking, travel, and family (3) . In most cultures the scheduling of holidays originally was related to the (4) , the (5) cycle, and (6) . Christmas, December 25, celebrates the (7) of Jesus, but it is not actually known whether Jesus was (8) in the wintertime Over the years Christmas has come to symbolize goodwill and (9) for both Christians and non-Christians, and the (10) of Christmas threatens to replace generosity with greed. Other important holidays in America are Valentine’s Day, St. Patrick’s Day, April Fools’ Day, and (11) . On Valentine’s Day, people give cards, chocolates, flowers, and kisses to their (12) and sweethearts. During Easter Week in late March or early April, Christians remember the death and (13) of Jesus. Although not actually a holiday and has no religious (14) , April Fools’ Day, celebrated on April 1, is a day when people play embarrassing (15) on their fiends and (16) and even on their teachers. In (17) , Labor Day is celebrated on May 1, whereas in (18) and the United States, labor and laborers are honored by a (19) holiday on the first (20) in September.

Holidays are special times of (1) from work and other routines. Holidays are often times for celebration, (2) , eating, drinking, travel, and family (3) . In most cultures the scheduling of holidays originally was related to the (4) , the (5) cycle, and (6) . Christmas, December 25, celebrates the (7) of Jesus, but it is not actually known whether Jesus was (8) in the wintertime Over the years Christmas has come to symbolize goodwill and (9) for both Christians and non-Christians, and the (10) of Christmas threatens to replace generosity with greed. Other important holidays in America are Valentine’s Day, St. Patrick’s Day, April Fools’ Day, and (11) . On Valentine’s Day, people give cards, chocolates, flowers, and kisses to their (12) and sweethearts. During Easter Week in late March or early April, Christians remember the death and (13) of Jesus. Although not actually a holiday and has no religious (14) , April Fools’ Day, celebrated on April 1, is a day when people play embarrassing (15) on their fiends and (16) and even on their teachers. In (17) , Labor Day is celebrated on May 1, whereas in (18) and the United States, labor and laborers are honored by a (19) holiday on the first (20) in September.