Noise pollution can cause （）
A: lower productivity
B: lower blood pressure
C: sound sleep
D: less stress
A: lower productivity
B: lower blood pressure
C: sound sleep
D: less stress
举一反三
- People who sleep less tend to have lower blood pressure, heart attack, diabetes, weight gain and other problems.
- Small population may mean ______. A: higher productlvity, but a lower average income B: lower productivity, but a higher average income C: lower productivity and a lower average income D: higher productivity and a higher average income
- If a country’s saving rate declined, then other things the<br/>same, in the long run it would have () A: lower<br/>productivity, but not lower real GDP per person. B: lower<br/>productivity and lower real GDP per person. C: lower<br/>real GDP per person, but not lower productivity D: neither<br/>lower productivity nor lower real GDP per person.
- What can you do to lower your risk A: exercise B: manage stress C: nothing
- In the model of monopolistic competition, compared to a firm with a lower marginal cost, a firm with a higher marginal cost will set a ________ price, produce ________ output, and earn ________ profits. A: higher; less; more B: higher; less; less C: lower; less; less D: lower; more; more