Reading a book and listening to music
simultaneously
seems to be no problem for them.
A、
intermittently
B、
constantly
C、
concurrently
D、
continuously
【正确答案】
C
【答案解析】
解析：simultaneously同时地。 concurrently同时发生地。 intermittently间歇地。constantly经常地，坚持不懈地。continuously不断地，连续地。
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