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【判断题】
PID控制器由 比例单元 、积分单元和微分单元组成, P指的是“ 比例 ” proportionA.
正确
B.
错误
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【简答题】McGuire proposed Labor Day in order to ________. A) draw people’s attention to the striking contrast between the rich and the poor B) make prominent the important role of the working class in society ...
【单选题】What did Sarah have to do in order to finish her economics project?
A.
Draw her own charts and graphs.
B.
Go to the computer center fa assistance.
C.
Wait until 9:30 for a computer.
D.
Ask her professor for advice.
【简答题】现存宋元小说话本,除《 》外,都仅见于明刻话本集。
【单选题】What did Sarah have to do in order to finish her economics project?
A.
Draw her own charts and graphs.
B.
Go to the computer center for assistance.
C.
Wait until 9:30 for a computer.
D.
Ask her professor for advic
【单选题】In order to be a good writer, you have to________your imagination and life experience. [ ]
A.
draw up
B.
draw upon
C.
draw in
D.
draw for
【单选题】The author writes this passage in order to ______.
A.
entertain young children
B.
persuade readers
C.
inform. us of Mother's Day
D.
describe the importance of mothers
【单选题】In order to be a good teacher, you have to ______ your imaginations and life experience.
A.
draw up
B.
draw in
C.
draw upon
D.
draw for
【单选题】凸轮机构从动杆可以分为尖顶从动杆凸轮机构、滚子从动杆凸轮机构、平底从动杆凸轮机构,对于要求传动灵敏的场合,应选用( )
A.
平底从动杆凸轮机构
B.
滚子从动杆凸轮机构
C.
尖顶从动杆凸轮机构
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