单项选择题

A．He leads their small group discussions.
B．He advises them individually.
C．He teaches them laboratory classes.
D．He meets with them for large group lectures.
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单项选择题
A．Physical chemistry.B．Life experience.C．Introduction to Science.D．Biology.
A．Physical chemistry.
B．Life experience.
C．Introduction to Science.
D．Biology.
单项选择题
A．He’s spent all his money.B．After all he prefers his old one.C．He hasn’t, found one large enough.D．He hasn’t found a suitable one.
A．He’s spent all his money.
B．After all he prefers his old one.
C．He hasn’t, found one large enough.
D．He hasn’t found a suitable one.
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