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【简答题】
平面四杆机构中的运动副都是转动副, 此四杆机构称为 机构。
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举一反三
【单选题】Money that a firm has already spent, or committed to spend regardless of whether a project is taken, is called a(n)
A.
fixed cost.
B.
opportunity cost.
C.
sunk cost.
D.
incremental cost.
【简答题】原文:If a firm anticipates the future imposition of quotas, its strategy will be to gain as much market share as possible regardless of profitability. 译文:如果公司预计未来会对配额征税,该公司就会不考虑赢利性而是尽可能实施拓宽市场的策略。
【单选题】__ to the left, you will find the path __ to the park.
A.
Turn; leading
B.
Turned; to lead
C.
Turning; leading
D.
Having turned; led
【简答题】A．To show that mindless graffiti can provoke violence. B．To show that Londoners have a special liking for graffiti. C．To show that graffiti, in some cases, can constitute a crime. D．To show that graff...
【单选题】Which of the following is not among the responsibilities of a firm with regard to its employees?
A.
Safe working conditions.
B.
Proper treatment by other employees.
C.
Equal opportunities regardless of race, religion, or gender.
D.
Full and accurate financial disclosure of profits or losses.
【单选题】If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left，you would（）.
A.
fire a green star to the left
B.
send the letter K by light and point to the left
C.
place an orange signal to your left as you signal with a white light
D.
send the code signal S followed by L
【单选题】to the left, and you will see the railway station.
A.
Turning
B.
To turn
C.
Turned
D.
Turn
【简答题】(1) ___________ to the left, and you will see the bus stop.(2) ___________ to the left, you will see the bus stop. (turn)
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