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【判断题】
禾本科植物的叶片缺水时可向上卷曲，主要是因为其叶的上表皮具有泡状细胞。()A.
正确
B.
错误
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】6.2. The speaker does not
mentionA. taking a taxi. B. taking an airport
shuttle bus. C. taking a trolley bus. D. taking an airport
subway.
【简答题】刀具使用寿命是指刀具从开始切削至达到 为止所使用的切削时间,用 T 表示。
【单选题】One of the things the speaker does NOT remember about the street is that ______.
A.
garbage cans were kept from the street
B.
cars were moving slowly in the street
C.
policeman patrolled the street
D.
pedestrians passed by
【单选题】The speaker does not mention
A.
taking a taxi.
B.
taking an airport shuttle bus.
C.
taking a trolley bus.
D.
taking an airport subway.
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