【判断题】在足球比赛中,进攻是化解对方进攻的手段。
【单选题】According to the passage, regular physical exercise can make old people ______.
A.
better able to look after themselves
B.
look younger than they really are
C.
less likely to suffer from diseases
D.
more aggressive in their interaction with others
【单选题】利用霍尔元件不能制造的传感器是______。
【单选题】What is the writer's main purpose in the article?
A.
To recommend regular physical exercise.
B.
To describe the dreadful nature of the backache.
C.
To suggest that back problems can be remedied.
D.
To explain the widespread occurrence of back pain.
【判断题】半导体式传感器是磁敏、霍尔元件、气敏传感器、压阻传感器及色敏传感器等。