一般来说，新兴产业在发展期收益()，风险()。A.低;小 B.低;大 C.高;大 D

根据短文内容填词，首字母已给出。

     On Thursday afternoon, I tried to make some money with my voice. But I only k  1    two songs.

I decided to start at the kind old lady's house. But she did not come to the door. I was a  2   she could

not hear me, so I tried to sing louder. She still did not come, so I went to her neighbor's house. I was

in the middle of my second song w  3  the door opened.

      "W  4   are you doing?" a lady asked me crossly.

      "I'm singing". 

      "Yes, but why are you singing?"

      "I need money."

      "Well, I'll g  5   you 10 pence to go away."

       I went away. This time I sang at a house at the end of the street. A man c  6   to the door.

      "What are you doing?" he asked.

      "I'm trying to sing."

      "Young man," he said." Some people have good voices and some people have bad voice, and people

w  7   bad voices ought not to sing."

      "But I'm trying to earn some money," I told him. 

      "Oh, I see. Well, I'll give you a j 8   to do, if you want, you can sweep the l 9    for me." It was hard

work but I am now 35 pence y 10    than I was yesterday.

福万通IC贷记卡电子现金账户的余额转移清算周期为（）天.

A、10天

B、20天

C、30天

D、40天

在气割厚钢板时，由于气割速度较慢，为了防止割缝上缘熔化，可相对采用较（）些的火焰能率。

A、强

B、弱

金属是一种重要的材料，人类的生活和生产都离不开金属．如图表示了金属活动性顺序表中铜、锡、铁和铝元素被人类大规模开发、利用的大致年限

（1）根据图中数据和有关的化学知识，你认为金属大规模开发、利用的先后顺序跟下列哪些因素有关 _________ （填写序号）．

①地壳中金属元素的含量； ②金属的导电性； ③金属的活动性；④金属的延性、展性； ⑤金属冶炼的难易程度．

（2）钢铁的生产和使用是人类文明和社会进步的一个重要标志．一氧化碳在高温条件下，能从铁矿石（主要成分为：氧化铁）还原出铁．现有含氧化铁10mol的铁矿石，能够冶炼出金属铁多少克？同时生成的二氧化碳中含有多少个二氧化碳分子？

路风监察行使职权处理形式是什么？（第二十三条、第二十四条）