某日某区域空气质量指数（AQI）的各分指数为：SO200，NO90，PM160，PM100此日该区域空气的AQI为（ ）。 A: 100 B: 160 C: 90 D: 200

经过计算：某日某城市空气污染指数（API）的各分指数为：SO200，NO90，PM160，由此可判断该区域空气的API为（） A: 90 B: 160 C: 150 D: 200 E: 450

A2型题 经过计算：某日某城市空气污染指数（API）的各分指数为：SO200，NO90，PM160，由此可判断该区域空气的API为（） A: 90 B: 160 C: 150 D: 200 E: 450

During the 200 or so years before the mid-19th century, British politics was dominated by the Tories and the Whigs.

某日某区域空气污染指数（API）的各分指数为：SO A: 90 B: 160 C: 150 D: 200 E: 450

【单选题】It is going to be fine tomorrow, ______. A. So is it B. So it is C. So it does D. So does it A. So is it B. So it is C. So it does D. So does it

The function of direct current regulated power supply is to input an alternating current power of 220volts, so that it can output __________.( ) A: alternating current 200 volts voltage B: direct current 24 volts voltage C: direct current 200 volts voltage D: alternating current 24 volts voltage

It is impossible for little children to do much work in a short time. A: so; so; such B: such; so; such C: so; such; such D: such; such; so

It’s so vast, so deep, so 1___________.

-- David has made great progress recently. A: So he has; so you have B: So he has; so have you C: So has he; so have you D: So has he; so you have