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【单选题】
离心分离因数越大，表明离心设备的分离能力越（ ）A.
好
B.
不好
C.
无法判断
D.
一般
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反馈参考答案：
举一反三
【简答题】Each number shown below follows a certain rule. Figure out the rule and work out the missing number:
【单选题】The counter shown below is an example of
A.
an asynchronous counter
B.
a BCD counter
C.
a synchronous counter
D.
none of the above
【单选题】199 Which method shown below is acceptable for reducing cost or shortening the schedule?
A.
'Crashing'
B.
Changing scope.
C.
Performing activities in parallel rather than in series.
D.
All of the above.
E.
A and C only
【单选题】What operation on relations R and S produces the relation shown below? ( ){tuple | tuple∈R∧tuple∈S}
A.
union
B.
difference
C.
intersection
D.
division
【单选题】Michelle’s father, as well as her mother, in New York for a few more days.
A.
suggest her to stay
B.
suggests she must stay
C.
suggest her staying
D.
suggests she stay
【单选题】The symbol shown below is a(n) ________, and the output will be ________ for the input shown.
A.
buffer, not A
B.
inverter, 1
C.
inverter, A'
D.
buffer, 1
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