最应首先予以的措施A．保暖 B．配血 C．留置导尿 D．气管切开 E．拍X片

已知集合M={-2，3x²+3x-4，x²+x-4}，若2∈M，求x．

阅读理解。

                                                          Red Star Restaurant

    The biggest and busiest restaurant in Ji'nan is seeking 20 waiters who have relevant (相关的) experiences

in high-grade restaurants. About ￥800-1,500 per month.

    Red Star Restaurant is located at 66 on Park Street.

    Our phone number is 0531-8278-4560. 

                                                            3 People wanted

    Need 3 people who would like to work 4 evenings per week showing films. Earn $300 per week possibly.

Call 469-867-6042. 

                                                           Baby-sitter wanted

    For a year. 3 days a week. Some flexible (灵活的) hours required.

    Knowledge: above senior middle school.

    Call 0431-478-9971.

1. How many advertisements are for waiters? [ ]

A. One.

B. Two.

C. Three.

D. Four.

2. What kind of people are needed in the second advertisement? [ ]

A. Film actors.

B. Film makers.

C. People to show films.

D. Film actresses.

3. In the third advertisement, the baby-sitter should _____. [ ]

A. have a year's working experience

B. accept flexible working hours

C. work two days a week

D. be girls

4. How many waiters does Red Star Restaurant need? [ ]

A. 10.

B. 20.

C. 30.

D. 40.

5. Where can you find these advertisements? [ ]

A. In the newspaper.

B. On TV.

C. On the radio.

D. In the textbook.

系统抖动是指( )。

A．使用机器时，屏幕闪烁的现象

B．系统盘有问题，致使系统不稳定的现象

C．被调出的页面又立刻被调入所形成的频繁调入调出现象

D．由于内存分配不当，偶然造成内存不够的现象

刑法对社会保障卡做了有哪些违法处罚规定？

轻二塔蒸汽用的是（）

A、1.1Mpa

B、0.4Mpa

C、2.1Mpa

D、0.1Mpa