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【判断题】
对于顺序存储的长度为N的线性表,访问结点和插入结点的时间复杂度分别对O(1)和O(N)。
A.
正确
B.
错误
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举一反三
【单选题】What does the word “subside” mean? (the following three from P.323-327)
A.
reduce
B.
keep
C.
increase
【单选题】Consider the following statement on a RANGE partitioned table: ALTER TABLE orders DROP PARTITION p1, p3; What is the outcome of executing the above statement?()
A.
A syntax error will result as you cannot specify more than one partition in the same statement
B.
All data in p1 and p3 partitions are removed and the table definition is changed
C.
All data in p1 and p3 partitions are removed, but the table definition remains unchanged
D.
Only the first partition (p1) will be dropped as only one can be dropped at any time
【多选题】Which of the following are parts of the 5 P's of data science and what is the additional P introduced in the slides?
A.
people
B.
platforms
C.
programmability
D.
process
E.
perception
F.
purpose
G.
product
【单选题】I advised _____ , but he turned me a deaf ear.
A.
him not to smoke again
B.
him to smoke not again
C.
him to not smoke again
D.
not him to smoke again
【判断题】背景音乐的“总控开关”在真机的通知列表中。
A.
正确
B.
错误
【单选题】一个应聘者宁肯失去他羡慕已久的应聘岗位,也不出卖他原来所在单位的商业秘密。你觉得 :
A.
不值得学习;
B.
他太傻;
C.
他具有良好的职业道德;
【简答题】Answer the following question after reading the passage" Something you need to know about coronavirus" in the P.S What is the novel coronavirus?
【单选题】(the following four from P.370-373) What can we learn from the fact that the lid of the kettle or the pot jumped when the water boiled?
A.
Heat was being converted to movement.
B.
Heat was being converted to electric energy.
C.
Heat was being converted to chemical energy.
【单选题】若 的三个偏导数存在,且不为零,则方向 是函数 在点 处的______.
A.
变化率最大的方向
B.
变化率最小的方向
C.
可能是变化率最大的方向,也可能是变化率最小的方向
D.
既不一定是变化率最大的方向,也不一定是最小的方向
【简答题】P58 Task 5 Listening to the conversation and discuss the following questions. What are the guest's requests? What's the rate of typing and printing?
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