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【单选题】
使用有2500r/min标记的砂轮时,砂轮转速( )r/min。
A.
可以高于2500
B.
必须为2500
C.
必须低于2500
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【简答题】图 2-1 所示为 电路,其增益的表达式为 ,倒相器是其增益为 时的特例,其最大的缺点是 。
【判断题】个别计价法适合于所有国有企业的存货计价。
A.
正确
B.
错误
【单选题】下列关于键盘、鼠标的操作规范的描述,哪些是正确的?
A.
取下键盘或鼠标时沿键盘或鼠标插头的方向,水平向后拔出
B.
PS/2键盘严禁带电操作,PS/2鼠标可以带电操作
C.
PS/2鼠标严禁带电操作,PS/2键盘可以带电操作
D.
取下键盘或鼠标时沿键盘或鼠标插头的方向,左右摇晃向后拔出
【单选题】The park was filled with people talking on their cell phones
A.
公园里到处都是人,他们在聊有关手机的事情。
B.
打手机的人们在公园里聊天着。
C.
公园里到处是正在用手机打电话的人。
【简答题】The park was filled with people talking on ______.
【单选题】The park was filled____________ people talking on their cell phones.
A.
with
B.
of
C.
in
D.
on
【简答题】题目的答案,上传到这里
【单选题】Adam has been hired by an organization that has a partnership with a foreign company. Both the partners share resources and knowledge while developing new products. Adam's organization has formed a __...
A.
licensing company
B.
franchising company
C.
strategic alliance
D.
foreign subsidiary
【简答题】Page 63: Exercise B of Dialogue 1 in Part 2 Question 1
【单选题】The park was filled with people ( ) on their cell phones.
A.
to talk
B.
talked
C.
talk
D.
talking
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