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【单选题】
一棵二叉树高度为h,所有结点的度或为0或为2,则这棵二叉树最少有( )结点。
A.
2h
B.
2h-1
C.
2h+1
D.
h+1
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举一反三
【单选题】A gastroenterologist is a physician who specializes in study of:
A.
respiration and pathology
B.
mouth and teeth
C.
stomach, intestines, and related structures
D.
musculoskeletal system
E.
nutritional and weight loss diets
【多选题】根据旅游团的性质不同,全陪又可分为( )。
A.
入境旅游团全陪
B.
国内旅游团全陪
C.
专职全陪
D.
兼职全陪
【简答题】1)_____ a liquid a liquid mixture, especially one that is medicinal, poisonous, or magical 2) _____ to praise highly 3) ______ the reverence love and respect for a deity or sacred object 4) ______ a c...
【简答题】该不该生二胎
【单选题】SARS
A.
Serious Acute Respiratary Syndrome
B.
Severe Acute Respiration System
C.
Severe Acute Respiratory Syndrome
D.
Severe Acute Respiratary Syndrome
【单选题】SARS is ________
A.
Serious Acute Respiratary Syndrome
B.
Severe Acute Respiration System
C.
Severe Acute Respiratory Syndrome
D.
Severe Acute Respiratary Syndrome
【单选题】Harry started talking to the little girl ___________.
A.
because he was in trouble and did not know what to do
B.
because he had a little girl about the same age as this girl
C.
because he wanted to be friendly to the little girl who looked so nice
D.
when he suddenly realized that he could find a way out from the little girl
【多选题】税务行政处罚的类型有()
A.
警告
B.
没收非法所得
C.
罚款
D.
注销税务登记
E.
停止出口退税权
【单选题】What is NOT a function of the air supply of a covered lifeboat?()
A.
Provides air for engine combustion
B.
Pressurizes water spray system
C.
Provides air for passenger respiration
D.
Prs smoke and other noxious fumes from entering craft
【简答题】句型转换。 1. The little girl feels a little afraid. (改为一般疑问句) _______ the little girl _______ a little afraid? 2. Does the camel eat fruit?. (就疑问句做否定回答) _______, ________ ________. 3 .The kangaroo comes f...
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