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【多选题】
时间数列的速度指标主要有( )。A.
发展速度和环比发展速度
B.
增长速度和环比增长速度
C.
各环比发展速度的几何平均数
D.
各环比增长速度的序时平均数
E.
平均增长速度
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皮皮学刷刷变学霸
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【单选题】某位老师向学生讲述下文的用意,最可能是希望学生:农民问教授:“一个聋哑人到五金行买钉子,他先把左手的两个指头放在桌上,然后用右手做鎚钉的样子。店员拿出鎚子,他摇摇头,用右手指了指左手的两个指头;店员拿出钉子,他点点头。这时,一个盲人走进来。先生,请您想一下,他会如何买到一把剪刀?”教授从容答道:“简单。他只要伸出两个指头,模仿剪刀的样子就可以了。”农民笑起来:“先生,他不需要这样,盲人是会说话的。...
A.
勿受既有认知限制
B.
莫因专业蒙蔽真相
C.
审慎辨析言语歧义
D.
勇于质疑权威观点
【简答题】Why air must be pumped into the plane?
【简答题】Why must we __________ to the established standards of the culture? [A] confine [B] confirm [C] conform [D] confront
【单选题】Why not ________ an English club to practice ________ English? [ ]
A.
join; speaking
B.
to join; speaking
C.
join; to speak
D.
to join; to speak
【单选题】Why did Polly and Digory begin their adventures?
A.
Because of the bad weather.
B.
Because of the hot weather.
C.
Because they were in a good mood.
【单选题】Why must nurses work in shifts?
A.
They are careless.
B.
Nursing services must be provide continuously.
C.
They work at night from time to time.
D.
A shift is usually eight hours long.
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