环境资源上的差异造成的边缘为（）。A、固有边缘 B、诱导边缘 C、人为边缘 D、干扰

根据判断下列句子的正确(T)与错误(F)。

     Long long ago, there was a young man who made his living by making tofu. One day, the tofu was not

sold out. In order to keep the tofu fresh, he cut it into pieces and mixed some flavors (香料) in it. Then he

put it into a crock (瓦罐). Several days later, he opened the crock and found that the smell was terrible. But

he tasted a piece. To his surprise, the taste was nice. An idea came into his mind (脑海)-maybe the smelly

(臭的) tofu would be a kind of special food. As expected, the smelly tofu became popular with local people,

soon it was well-known all over the whole nation.

     Now smelly tofu is the most special food in Hunan. And it is recommended (推荐) to all the people around

the world.

( )1. Long long ago, there was a young man who made tofu for a living.

( )2. A few days later, the young man opened the crock and found the smell was good.

( )3. The young man didn't think that the smelly tofu would be a kind of special food.

( )4. Soon the smelly tofu became famous in the whole nation.

( )5. Although the smelly tofu smelt terrible, it tasted nice.

平常邮件的细排操作一般分为（）。

A、分堆、细排、复核

B、分堆、复核、细排

C、细排、复核、分堆

D、复核、分堆、细排

在施工地点附近带电设备的遮拦上、室外工作地点的围栏上应悬挂（）。

A、禁止类标示牌

B、警告类标示牌

C、禁止类安全牌

D、指令类安全牌

要健全立法机关和社会公众沟通机制，开展立法协商，充分发挥政协委员、民主党派、工商联、无党派人士、人民团体、社会组织在立法协商中的作用，探索建立有关（）等对立法中涉及的重大利益调整论证咨询机制。

A、社会团体

B、专家学者

C、人民群众

D、国家机关

[背景材料]
某大型水利工程项目跨多个省、市，建设周期超过10年，建筑形式主要包括渡槽、暗渠、涵洞等，工程包括河渠交叉建筑物多座，主体工程建设需完成大量土石方开挖和钢筋混凝土构筑。
目前正在施工的过程任务主要包括黄河水下穿越工程、三座桥架、一条500m长的石质山体隧道和一段长15hkm、宽10m、深50m的明渠开挖工程。
根据以上场景，回答下列问题：

该施工阶段可能会用到混凝土搅拌机，以下关于混凝土搅拌机使用与管理的说法正确的是( )。

A．固定式的搅拌机要有可靠的基础，操作台面牢固，便于操作，操作人员应能看到各工作部位情况

B．使用前无需空车运转即可投入使用

C．作业中严禁将头或手伸进料斗内，也不得贴近机架察看，运转出料时，严禁用工具或手进入搅拌筒内扒动

D．运转中途可以停机但可以在满载时启动搅拌机

E．作业后，要进行全面冲洗，筒内料出净，料斗降落到最低处坑内，如需升起放置时，必须用链条将料斗扣牢