单项选择题

[b] in debate and [1] in delate can be said to form a(n) _____.

A．phonemic contrast
B．complementary distribution
C．assimilation role
D．sequential role
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单项选择题
According to the text the newsagent last wrote out “Topham” on the top right -handed comer of the author's paper because _____.
A．the newsagent wanted to revenge on the author' s habit of frequently changing the order
B．the newsagent was intentional to punish Topham
C．the newsagent was careless and opinionated
D．the newsagent was reluctant to write the author' s name in a correct way
单项选择题
The tone of this text is _____.
A．desperate and disgusting
B．depressed and grieving
C．evil and curing
D．embarrassing and hopeless
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