Which one of the following is NOT essential when asking for clarification politely?
A. Being open-ended.
Being neutral.
C. Being patient.
D. Being inquisitive.
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在现代汉语中,仄声包括哪几个声调。
A. 一声
B. 二声
C. 三声
D. 四声
一般来说,对联下联的最后一个字的声调是:
A. 一声
B. 二声
C. 三声
D. 四声