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【单选题】
广义表的深度是指( )A.
广义表中元素的个数
B.
广义表中原子元素的个数
C.
广义表中表元素的个数
D.
广义表中括号嵌套的层数
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【单选题】Whether you liked it or not, you shouldn't have ___ to your mother when she was talking to you. [ ]
A.
turned back
B.
turned down your back
C.
turned your back
D.
turned your back away
【简答题】______ are supplied whether you have meals provided or prepare your own.
【单选题】听力原文：M: Have you heard whether George will have to have that operation or not? W: That's why I called you. When I visited the hospital this noon, I learned they had operated around 9 o'clock. The doct...
A.
He is going to be operated on at 9 o'clock.
B.
He is under operation now.
C.
He already had his operation.
D.
He is all right now.
【单选题】听力原文：M: Have you heard whether George will have to have that operation or not? W: That's why I called to you. When I visited the hospital this noon, I learned they had operated around 9 o'clock. The d...
A.
He is going to be operated on at 9 o'clock.
B.
He is under operation now.
C.
He already had his operation.
D.
He is all right now.
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