单项选择题

A) regulations C) preferences
B) requirements D) definitions

A．regulations
B．requirements
C．preferences
D．definitions
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单项选择题
A) various C) different B) same D) similar
A．various
B．same
C．different
D．similar
单项选择题
A) In spite C) Although B) Yet D) Despite
A．In spite
B．Yet
C．Although
D．Despite
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