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听力原文:W: Your dog certainly seems to know you are his master. Did you have to punish him very often when you train him? M: I found it's much better to praise him when he obeys and not to be so fussy when he makes mistakes. Q: What does the man say about training dogs? (19)
A.
He bas learned a lot from his own mistakes.
B.
He is quite experienced in training wild dogs.
C.
He finds reward more effective than punishment.
D.
He thinks it important to master basic training skills.
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A.
速动片
B.
联轴器
C.
连接板
D.
起动片
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【单选题】外搭铁式电压调节器中的大功率三极管是接在调节器的
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“+”与“一”之间
B.
“+”与“F”之间
C.
“F”与“一”之间
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产后 70 天以内
B.
产后 70-140 天
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产后 140 天 - 干奶期
D.
产后 80 天以内
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以太网卡
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防火模块
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通信卡
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背压
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溢流定压
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【多选题】如图所示,溢流阀的作用是
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安全保护
B.
稳定泵的出口压力
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稳定系统的系统压力
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卸荷
【判断题】新中国成立前,我国大约有100多万人口的民族不同程度地保留原始公社制度的残余。( )
A.
正确
B.
错误
【单选题】Which of the following is true?
A.
You’d better reserve a table if you do not want to wait at restaurants when eating out.
B.
Usually Americans go out to have supper at 7 or 8 PM.
C.
You will not have your breakfast until 11:30 in American restaurants.
D.
It is impossible to order a meal in the afternoon in the USA.
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