2.How did the robot behave at the beginning of the test?
A. It rotated its wings through 90 degrees.
B. It twitched but gradually gained height.
C. It was twitched and broke down.
D. It landed not long after the test.
3.Which of the following is nearest to Peter Bentley’s view on the winged robot?
A. The winged robot could never really fly.
B. The winged robot did not have a mortor.
C. The winged robot should go through further evolution before it could fly.
D. The robot could fly if it were lighter.
4.What measured how much lift the robot produced?
A. Two vertical rods.
B. A movement detector.
C. An elastic band.
D. Both B and C.
5.What does “the process” appearing in the last paragraph refer to?
A. Pairing up successful instructions.
B. Sending instructions to the robot.
C. Generating new sets of instructions for evaluation.
D. All the above
Stress level Tied to Education Level
People with less education suffer fewer stressful days, according to a report in the current issue of the Journal of Health and Social Behavior.
However, the study also found that when less-educated people did suffer stress it was more severe and had a larger impact on their health.
From this, researchers have concluded that the day-to-day factors that cause stress are not random, Where you are in society determines the kinds of problems that you have each day, and how well you will cope with them.