不定项选择

增大结晶时的过冷度，获得的晶粒越粗大。

A．错误
B．正确

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单项选择题

When making judgment on what you have read, you tend to make decisions on all the following EXCEPT whether ______.
A、you agree or disagree with the author
B、you've asked questions or not
C、it is a fact or an opinion
D、the argument is logical or not
E、you are convinced by the author or not

多项选择题

矫形器的应用目的包括？
A、固定和保护
B、稳定与支持
C、预防与矫正畸形
D、代偿功能
E、替代肢体