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【多选题】
在控制系统中,下列说法正确的是A.
控制通道时间常数越小，动态偏差越小；
B.
控制通道时间常数越大，动态偏差越小；
C.
扰动通道时间常数越小，动态偏差越小；
D.
扰动通道时间常数越大，动态偏差越小；
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举一反三
【简答题】情景匹配，从B栏中选出适合A栏的内容。 A ( )1. What do you like? ( )2. What does he like? ( )3. What are you doing in the garden? ( )4. Helen likes beautiful dolls. ( )5. Do you like collecting stamp...
【简答题】What he ’ d like _____ a digital watch. What he ’ d like _____ textbooks.A. are; are B. is; is C. is; are D. are; is
【单选题】Part II Oral practice I . Match the questions with the answers.
A.
I really don’t like it.
B.
Twice a week.
C.
He likes to play basketball.
D.
At Susan’s party.
E.
She has few friends. 1.What does he like to do on weekends? 2.Where are they going to go dancing? 3.Why does she usually go shopping alone? 4.How often does he go swimming? 5.What do you think of the English song?
【单选题】What he’d like _____ a digital watch. What he ’ d like _____ textbooks.
A.
are; are
B.
is; is
C.
is; are
D.
are; is
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