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【单选题】
以下( )英文语句表示为“直接刷卡出站就可以了”。A.
This is your car Swipe it and then you can come out.
B.
Hold the card in your right hand and swipe it here.
C.
Please wait for the train at the opposite platform.
D.
You can return the ticket at the Ticket Center.
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】— I ______ have turned on the air conditioner at such a low temperature. — No wonder you've got a cold. [ ]
A.
shouldn't
B.
couldn't
C.
mustn't
D.
needn't
【简答题】若一棵度为 4 的树中度为 2 、 3 、 4 的节点个数分别为 3 、 2 、 2 ,总节点个数为 25 ,则该树中度为 1 的节点个数是多少?
【单选题】The banking has long been the _____ of the region’s crony capitalism.
A.
obstacle
B.
holdback
C.
cornerstone
D.
hindrance
【单选题】After a long walk at the Disney park, I want to have_____to drink.
A.
any cold thing
B.
cold something
C.
something cold
D.
anything cold
【简答题】若一棵度为 4 的树中度为 1 、 2 、 3 、 4 的节点个数分别为 4 、 3 、 2 、 2 ,则该树的总节点个数是多少?
【单选题】—where are you going, Tom? —I have a ______. I want to see a dentist. [ ]
A.
throat
B.
toothache
C.
cold
D.
fever
【单选题】听力原文：W: Have you ever seen so much snow in your life? M: I'm just tired of all this cold. How I envy those guys in Florida! Q: What is being discussed? (10)
A.
Florida.
B.
Holiday in Florida.
C.
The man's friends in Florida.
D.
Weather.
【单选题】若一棵度为 4 的树中度为 1 、 2 、 3 、 4 的节点个数分别为 4 、 3 、 2 、 2 ,则该树的总节点个数是多少?
A.
11
B.
24
C.
14
D.
25
【简答题】P246 第2题 若一棵度为4的树中度为2、3、4的结点个数分别为3、2、2,则该树的叶子结点的个数是多少?
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