单项选择题

According to the passage, static electricity can be caused by _______.

A．using home-made electrical goods
B．wearing clothes made of natural materials
C．walking on artificial floor coverings
D．sorting food in a refrigerator
<上一题 目录 下一题>
热门 试题

单项选择题
What effect does excessive positive ionization have on some people
A．They think they are mad.
B．They feel very tired.
C．They become violently sick.
D．They are too tired to do anything.
单项选择题
Educators are finding that students who cheat _________.
A．have poor academic records
B．use the information in late years .
C．can be academically weak or strong
D．are more likely to be punished than before
相关试题