皮皮学，免费搜题
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【单选题】
在一项暑假夏令营活动中,天气炎热,同学们都感到口干舌燥。此时,会因为自己还剩半杯水而高兴,而则因为只有半杯水而担忧。说明情绪具有A.
主观性
B.
感染性
C.
客观性
D.
两极性
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】四、题 8-4 ,试确定图示结构,在位移法计算中其基本未知量的数
A.
四个未知量，四个刚臂
B.
六个未知量，两根链杆，四个刚臂
C.
两个未知量，两根链杆
D.
四个未知量，两根链杆，两个刚臂
【单选题】Anita: I saw Nora in the teacher's office this morning. Do you know _______ she was there? Brian: She cheated on tests. [ ]
A.
how
B.
if
C.
when
D.
why
【简答题】Do you know who created the computer?
【简答题】Do you know what the driver was?
【单选题】Julie: Do you know everybody here? Paul: No. Hardly anybody. Julie: How do you know Sam? Paul: He' s a friend of Mark' s. How do you know him? Julie: Sam and I go to the same gym. Paul: He ' s a nice ...
A.
How long have you known him?
B.
What do you know about him?
C.
How well do you know him?
D.
Why do you want to know him?
【简答题】You may know the English letters A, B and C. But do you know there are people called ABCs? Do you know there is such a thing as “a banana person”? How strange! ABC means American-born Chinese. An ABC ...
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