皮皮学，免费搜题
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【单选题】
小学生对描绘在纸上堆积在一起的立方体的数目常常不能正确辨认,是因为他们()A.
将非本质特征当作本质特征
B.
形状知觉水平低
C.
立体几何图形知觉水平不高
D.
方位知觉水平不高
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】二 . 根据对话内容,从方框中选择恰当的选项补全对话,其中有两项多余。 A: Hey, John! My birthday party is next week. (1) ______ B: Yes, I'd like to. I can sing a song for you. A: Really? (2) ______ B: No, I can't. (3) ______ A: I'm a g...
A.
What about you?
B.
Can you dance?
C.
How old are you?
D.
Do you like bananas?
E.
Would you like to come?
F.
And I can bring some fruits to the party.
G.
We'll have a good time at the party then.
【单选题】在分析测定中，下面情况哪些是属于系统误差() ①天平的两臂不等长; ②滴定管的读数看错; ③试剂中含有微量的被测组分; ④在沉淀重量法中，沉淀不完全。
A.
①②;
B.
①③;
C.
②③;
D.
①③④。
【简答题】图中河流是在自然条件下形成的，A、B、C分别表示不同河段上的三个点，下图是根据三处的横截面状况绘制了下面的剖面图。分析后回答。 (1)根据图中信息判断该河流在上述三图中的流向顺序是 。 (2)简述A、B、C三河段主要的外力作用。 (3)A处森林资源的重要环境功能是 。 如果不合理采伐，河流的水文特征有何变化？ (4)C处主要的环境问题是 。分析C处环境问题严重的自然因素。 (5)B处农业生产的特色...
【单选题】Adams: You're looking so nice. Bill: ______
A.
Pretty good.
B.
It's very nice of you,and you are so beautiful.
C.
Sorry to hear that.
D.
Yes,I'm extremely well,thanks.
【单选题】"You're a very good student." "__________"
A.
No, not at all
B.
Yes, I am
C.
Just so and so
D.
I'm glad to hear that
【单选题】在分析测定中,下面情况哪些是属于系统误差( )
A.
平的两臂不等长；②滴定管的读数看错；③试剂中含有微量的被测组分；④在沉淀重量法中，沉淀不完全。
B.
①②；
C.
①③；
D.
②③；
E.
①③④
【单选题】—You play the guitar very well. —_______. [ ]
A.
Not so well
B.
Thank you
C.
You're wrong
D.
I'm not good at it
【单选题】You're sitting in a cafe with a friend, and you see someone you find attractive looking at you. He comes over and says to you, "Good to see you. So how was your weekend?" What do you think or say?
A.
I'm so embarrassed. What do I say?
B.
"I'm sorry. Have we met before?"
C.
"It was great. Thank you. How about you?"
D.
"My memory is awful. I can't remember if we already met."
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