陶瓷压电传感器特点对的是
A. 精度高
B. 长期稳定性好
C. 灵敏度大
D. 价格高
石英传感器的正压电效应可以测量
A. 物体的重量
B. 子弹的发射后座力
C. 水流的冲击力监测
D. 细胞核称量
What is the most important meal of the day?
A. Breakfast
B. Lunch
C. Supper
D. Afternoon tea
What DON'T we usually do in the morning?
A. Brushing our teeth
Bathing
Cleaning the room
D. Getting ready for school