出租汽车车辆安全检视主要包括（） A.轮胎压力是否正常，固定螺母是否缺失或松动 B.

公安刑事司法的基本原则，是公安机关进行刑事司法工作所必须遵循的基本行为准则。 ( )

阅读理解。

Here is the bulletin board of Class 3. Some of the students put their notes on it. Please read them and  answer the following questions.        I want to say thanks to Miss Li,our dear teacher. We couldn't   have a wonderful class without you.                                             Tom Dear Mr Chen,      Please accept my best thanks. I have a lot   of fun  in your P.E. class.                                                         David      Many thanks to John for helping me with  math homework.                                                        Jane    I am thankful to Bill for  lending me books.  I'll  remember to  bring mine next time.                                                          Mario       A thousand thanks to Alex. He always   helps me clean the windows when I'm  busy.                                                        Julia  I'm  thankful to know that I have so many  kind  students. I love you all.                                                     Miss  Li

1. The Chinese meaning of "bulletin board" is _______.

A. 电影广告         B. 寻人启事     C. 公告栏           D. 通缉令

2. According to the notes on the bulletin board, what holiday might be coming?

A. Christmas             B. Halloween     C. Thanksgiving           D. New Year's Day

3. When Julia is busy, what does Alex always help her do?

A. To do math homework.     B. To clean the windows.     C. To have P. E. class together.     D. To take books to school.

4. From the bulletin board, we know that Mr Chen is a _____.

A. repeater               B. P.E. teacher     C. doctor                 D. pilot

5. Why does Bill lend books to Mario?

A. They are classmates.     B. Miss Li wants him to do so.     C. Bill has too many books.     D. Mario forgot to bring his books to school.

      

设N_A为阿伏伽德罗常数的值，下列叙述正确的是[ ]

A．16g O₂和O₃的混合气体中含有的原子数为N_A   

B．在1L0.1 mol/L碳酸钠溶液中，阴离子总数小于0.1 N_A      

C．常温下，0.1mol氯化钠所含的共价键数目为0.1N_A

D．1mol Fe²⁺与足量的H₂O₂溶液反应，转移2N_A个电子

颞下颌关节脱位以（）

A.关节弹响为主

B.关节疼痛为主

C.张口受限为主

D.不能闭口为主

选矿厂设备开机顺序为（）。

A、从前向后

B、从后向前

C、同时开机

D、随意开机