根据短文内容，回答下列问题。

     Kay is a Chinese girl. She is 13 years old. She can do many things (事情). She can sing, dance,

draw, swim and so on (等等). And she likes English very much. She can speak English very well. She

can sing English songs (歌曲). She is very good.

1. Who is Kay?  

                    _______        

2. How old is she? 

                            _______

3. Can she swim?

                        _________

4. Can she play the piano? 

                  ____________

5. Does she like English?

    ___________________

赵某因涉嫌强 * * ，被公安机关立案侦查。在对赵某的侦查过程中，发现赵某另有多起杀人、抢劫的嫌疑，按我国刑事诉讼法的规定，对赵某的羁押期间应从发现新的犯罪行为之日起重新计算。此时，公安机关应履行下列哪一法律手续

A．应经上一级人民检察院批准

B．应报人民检察院备案

C．应在省级人民检察院备案

D．应经省级人民检察院批准