单项选择题

Which of the following is NOT the duty of the lab instructor

A．Taking care of the students’ safety.
B．Grading their lab notebooks.
C．Helping set up the experiments.
D．Giving them lectures on physics.
<上一题 目录 下一题>
热门 试题

单项选择题
What do we learn about San Francisco
A．It is a city built in the mountains.
B．It has the world-famous bridge.
C．Visiting the city is not so easy.
D．It has no bus service.
单项选择题
How did the dog perform his duties
A．He was delighted to show them off.
B．He did his best but was not often successful.
C．He did them quickly to get them over.
D．He had few opportunities to do them.
相关试题