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【单选题】
( )是指为实现不同方向运动要求而专门设置的执行机构,也是本门课程重要的学习内容。A.
金属结构
B.
工作机构
C.
动力及电气控制系统
D.
安全防护系统
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【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
【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
【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】He gave up _ two years ago. That's to say, he is a non-smoker now. [ ]
A.
smoke
B.
smoking
C.
to smoke
D.
smoked
【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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