单项选择题

4.社会基本矛盾的尖锐化积累到一定程度会引发阶级斗争甚至社会革命
A、正确
B、错误

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单项选择题

Which of the following fluency activities for less advanced learners is not appropriate?
A、The learners write down the numbers as the teacher quickly says them in an unpredictable order.
B、Each student speaks to one partner about the given topic within three minutes; then they will repeat what they say to another partner, but within two minutes.
C、Students write about an unfamiliar topic under time pressure.
D、Learners are asked to do speed reading on a very easy graded reader.

单项选择题

为匹配所有的空行，可以使用正则表达式 ^$。（） A. 对 B. 错