单项选择题

Although most dreams apparently happen ______ , dream activity may be provoked by external influence.

A．spontaneously
B．simultaneously
C．homogeneously
D．instantaneously
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单项选择题
There are not many teachers who are strong ______ of traditional methods in English teaching.
A．sponsors
B．contributors
C．advocates
D．performers
单项选择题
You need to rewrite this sentence because it is ______ . The readers will have difficulty in understanding it.
A．comprehensive
B．alternative
C．deliberate
D．ambiguous
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