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【多选题】
下列属于“经验之塔”理论的观点是()。A.
视听媒体可以突破时空的限制,可以弥补直接经验的不足,同时又能为学生提供较为具体的和易于理解的经验
B.
教学必须通过具体经验来进行
C.
教学不能满足于获得一些具体经验,而必须向抽象发展
D.
教学应从具体经验入手,逐渐过渡到抽象经验
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皮皮学刷刷变学霸
举一反三
【单选题】--Wow. That's a marvelous room. I've never known you're so artistic! -- _______
A.
Great, I am very art-conscious
B.
Don’t mention it
C.
Thank you for your compliments
D.
It’s fine
【简答题】— Wow! This is a fantastic project! I've never known you're so creative. — __________ A: Don't mention it. B; Great, I dare to say I am a talent. C; Thanks for your compliments.
【单选题】两独立样本均数比较的t检验,若P值越小,则
A.
两样本均数间的差异越大
B.
两样本均数各对应的总体均数间的差异越大
C.
两样本均数间的差异越小
D.
两样本均数各对应的总体均数间的差异越小
E.
越有理由认为两样本均数各对应的总体均数不同
【单选题】- Wow! This is a marvelous room! I've never known you're so artistic.- _____________
A.
Great, I am very art-conscious.
B.
Don't mention it.
C.
Thanks for your compliments.
D.
It's fine.
【简答题】7+2.3的值是
【简答题】设Z的观测值如表所示： t 0 1 2 3 4 V 0.8 1.3 1.7 2.1 2.3 设Z(t)=f(t)=X 1 +X 2 t，求X 1 ，X 2 的估值。
【单选题】-- Wow! This is marvelous room! I’ve never known you’re so artistic.-- ().
A.
Great, I am very art-conscious.
B.
Don’t mention it.
C.
Thanks for your compliments
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