1942年2月延安整风时，毛 * * 同志在（）的报告中提出了正确处理党内矛盾的“惩前毖后

经批准的安全技术措施遇到因条件变化或者考虑不周需变更安全技术措施内容时，应经原编制、审批人员办理变更手续，否则不能擅自变更。( )

心电示PP间期显著延长，达2.6秒，其间无P波及QRS波，长PP间期与基本窦性PP间期间倍数关系，可能是

A．窦性心动过缓

B．窦性心动不齐

C．I度窦房传导阻滞

D．Ⅱ度窦房传导阻滞

E．窦性停搏

阅读理解。

     Notes:

      **API stands for Air Pollution Index(指数).

     **Particulate matter (PM10) is a major component of air pollution that threatens both our health and our

environment. It consists of very small liquid and solid particles floating in the air.

     **Sulfur dioxide(SO2) acts as an acid．Inhalation(吸入) results in labored breathing, coughing, or a sore

throat and may cause permanent lung damage.

1. According to Graph 1, which of the following cities has the worst air pollution?

A. Qinhuangdao.

B. Tianjin.

C. Qingdao

D. Shenyang. .

2. If your city is symbolized by either red or purple, the pollution in your city is _____.

A. Moderate or high.

B. Moderate or slight.

C. Medium or high.

D. Medium or slight.

3. Which of the following statements is TURE? 

A. With API value below 150 the air is free from being polluted.

B. The colors from purple to Yellow indicate the air quality is becoming much worse.

C. When there are floating solid particles and dust in the air, it is dangerous pollution.

D. On September 8th the color-symbol of Beijing City's air quality is 'Blue'.

4. When more citizens are beginning to have labored breathing soon after they are in the open air,

    it suggests that _____.

A. there is a large amount of sulfur dioxide in the air

B. it is so cold that they may have caught a cold

C. they are starting to cough or have a fever

D. they must be infected with permanent lung disease

たなかさんは　いつも　（　　　　）　ことばを　つかいます。 　

A．ふべんな

B．ざんねんな

C．ていねいな

D．ねっしんな

能将模拟信号转换为数字信号的是（）

A.探测器

B.准直器

C.阵列处理机

D.A/D转换器

E.D/A转换器