LF炉精炼过程中影响铝的收得率的因素有（）。 A.钢液温度 B.钢中氢的含量 C.钢

根据下列句子及所给首字母，写出空缺处各单词的正确形式。

1. This hat will give p_______ against the hot sun.

2. I would a_______ it if you would turn the music down.

3. We, human beings should protect w_______ for our own existence.

4. In class you should pay a_______ to what your teacher is saying.

5. My father was warned by the neighbors that we were in d_______.

6. The dog looks very f_______, but it is very gentle really.

7. There are many kinds of i_______ in the world, a bee is one kind of them.

8. You will e_______ your health if you work so hard.

9. I was at a complete l_______ as to how to find the money in time.

10. The city of Yuyao has _______ in holding the 11th Exhibition of Plastics.

监理应在 (52) 阶段审查承建单位选择的分包单位的资质。

A．建设工程立项
B．建设工程招标
C．建设工程实施准备
D．建设工程实施

简述法的继承的主要内容。

设备危害因素识别时考虑的因素应包含安装地点、安装人员、运行环境、维护水平。

8点序列的按时间抽取的（DIT）基-2FFT如何表示？