单选题
An "off-hand speech" is______.
A、
a speech not longer than three minutes
B、
a speech without preparation
C、
a speech with a piece of paper in hand
D、
a speech which is well prepared
【正确答案】
B
【答案解析】
[解析] off-hand意为“没准备的”，根据组织形式那一段提供的信息，前面提到了它的反义词prepared speech。
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