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【多选题】
信息沟通的基本要素有A.
信息源
B.
编码
C.
通道
D.
反馈
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】— I went to your home yesterday afternoon, but your mother was alone at home. — Oh, I'm sorry. I ______ football with my classmates at that time. [ ]
A.
play
B.
played
C.
was playing
D.
have played
【单选题】I'm sorry that I can not accept your ________ to attend your birthday party, Linda, because I'm ________ to answer all the customers' letters tonight by my boss. [ ]
A.
requirement; required
B.
demand; requested
C.
request; asked
D.
request; required
【简答题】（ ）是影响期权价格的最重要因素。
【单选题】—I wonder ______. —On Guoqing Road.
A.
what’s your address
B.
where is your address
C.
what your address is
D.
where your address is
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