皮皮学，免费搜题
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【单选题】
In Figure 11-17, which plant is optimal if the firm is going to produce 500 basketballs per week?A.
Plant 4
B.
Plant 3
C.
Plant 2
D.
Plant 1
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皮皮学刷刷变学霸
举一反三
【单选题】选择填空。 ______ you interested ______ such a dangerous job? [ ]
A.
Do; in
B.
Are; in
C.
Are; with
【单选题】---_____they have a car? ----Yes, they _______.
A.
Do, are
B.
Are, do
C.
Do, do
D.
Are, are
【简答题】调节器的测量值大于给定值时,若仪表的输出信号减小,则该调节器为( )作用。