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【多选题】
交换行为的发生必须具备的条件有A.
至少有两方为当事人
B.
每一方都被对方认为有价值的东西
C.
每一方都能沟通信息和传送货物
D.
每一方都能自由接受或拒绝对方的产品
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Why does Shaq walk toward the kid?
A.
Because he wants to know if the kid admires him.
B.
Because he wants to ask the kid for the Pepsi.
C.
Because he is going to buy a Pepsi from the kid.
D.
Because he likes the kid.
【单选题】听力原文：This new kid looks like he is not all there. All he does is sit and stare out the window as if the only thing he sees is blank space. What is true about the kid?
A.
The kid looks absent-minded.
B.
The kid looks abnormal.
C.
The kid is not happy.
D.
The kid is angry.
【单选题】___________ by parents does great harm to the kid’s mental health.
A.
Having been abandoned
B.
Abandoned
C.
Being abandoned
D.
To abandon
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