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【判断题】
零状下, 某 LTI 系统,当激励为 e 1 (t) 时,响应为 e -5t , 当激励为 e 2 (t) 时,响应为 t, 则当激励为 3e 1 (t)+2e ꞌ 2 (t) 时,响应为 3e -5t +2
A.
正确
B.
错误
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参考答案：
举一反三
【单选题】听力原文：W: What does your friend do for a living? M: He's one of these people who give legal advice. Q: Who is the man's friend? (17)
A.
A lawyer.
B.
A teacher.
C.
A soldier.
D.
A doctor.
查看完整题目与答案
【单选题】听力原文：M：How can I get to work without a car? W：Why don't you call，a taxi? Q：What does the woman suggest the man do? (8)
A.
Call a friend.
B.
Take a taxi.
C.
Work on his car.
D.
Walk to work.
查看完整题目与答案
【单选题】W: How about your party last week? M: It was pretty successful and not a single friend was absent. What does the woman mean?
A.
One friend was absent from the party
B.
All her friends were present at the party
C.
Not all her friends participated in the party
D.
All her friends took partners to the part
查看完整题目与答案
【单选题】M: Excuse me, where can I find the manager in this building? I need to speak to him right now. W: Sorry, I can’t help you. I’m not familiar with this building. My friend lives here. 22. What does the ...
A.
She is a visitor.
B.
She just moved in here.
C.
She knows the manager.
D.
She is asking the way.
查看完整题目与答案
【判断题】萃取塔发生液泛的原因是萃取器的通量过大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】What does the fourth step “exploring” refer to?
A.
M aking a friend from an acquaintance.
B.
T rying sth. N ew and fun with friends.
C.
S haring everything with friends.
D.
T apping new meaning of friendship.
查看完整题目与答案
【单选题】M: Excuse me,where can I find the manager in this building? I need to speak to him right now. W: Sorry,I can't help you. I'm not familiar with this building. My friend lives here. What does the woman ...
A.
She is a visitor.
B.
She just moved in here.
C.
She knows the manager.
D.
She is asking the way.
查看完整题目与答案
【单选题】萃取塔发生液泛的原因是()。
A.
萃取器的通过量较小
B.
萃取液粘度减小
C.
萃取器的通量过大
D.
与粘度、通过量无关
查看完整题目与答案
【单选题】萃取塔发生液泛的原因是()。
A.
萃取器的通过量较小
B.
铝合金
C.
萃取器的通量过大
D.
以上均可
查看完整题目与答案
【单选题】听力原文：M: I'd like to get a refund on this. It's my Christmas present from a friend, but I've already got the same thing. Here is the receipt. W: All right. Please fill in this form. and sign your name....
A.
Sign his name for the fan.
B.
Fill in an application form.
C.
Exchange gifts with his friends.
D.
Get a purchase refunded.
查看完整题目与答案
相关题目：
【单选题】听力原文：W: What does your friend do for a living? M: He's one of these people who give legal advice. Q: Who is the man's friend? (17)
A.
A lawyer.
B.
A teacher.
C.
A soldier.
D.
A doctor.
查看完整题目与答案
【单选题】听力原文：M：How can I get to work without a car? W：Why don't you call，a taxi? Q：What does the woman suggest the man do? (8)
A.
Call a friend.
B.
Take a taxi.
C.
Work on his car.
D.
Walk to work.
查看完整题目与答案
【单选题】W: How about your party last week? M: It was pretty successful and not a single friend was absent. What does the woman mean?
A.
One friend was absent from the party
B.
All her friends were present at the party
C.
Not all her friends participated in the party
D.
All her friends took partners to the part
查看完整题目与答案
【单选题】M: Excuse me, where can I find the manager in this building? I need to speak to him right now. W: Sorry, I can’t help you. I’m not familiar with this building. My friend lives here. 22. What does the ...
A.
She is a visitor.
B.
She just moved in here.
C.
She knows the manager.
D.
She is asking the way.
查看完整题目与答案
【判断题】萃取塔发生液泛的原因是萃取器的通量过大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】What does the fourth step “exploring” refer to?
A.
M aking a friend from an acquaintance.
B.
T rying sth. N ew and fun with friends.
C.
S haring everything with friends.
D.
T apping new meaning of friendship.
查看完整题目与答案
【单选题】M: Excuse me,where can I find the manager in this building? I need to speak to him right now. W: Sorry,I can't help you. I'm not familiar with this building. My friend lives here. What does the woman ...
A.
She is a visitor.
B.
She just moved in here.
C.
She knows the manager.
D.
She is asking the way.
查看完整题目与答案
【单选题】萃取塔发生液泛的原因是()。
A.
萃取器的通过量较小
B.
萃取液粘度减小
C.
萃取器的通量过大
D.
与粘度、通过量无关
查看完整题目与答案
【单选题】萃取塔发生液泛的原因是()。
A.
萃取器的通过量较小
B.
铝合金
C.
萃取器的通量过大
D.
以上均可
查看完整题目与答案
【单选题】听力原文：M: I'd like to get a refund on this. It's my Christmas present from a friend, but I've already got the same thing. Here is the receipt. W: All right. Please fill in this form. and sign your name....
A.
Sign his name for the fan.
B.
Fill in an application form.
C.
Exchange gifts with his friends.
D.
Get a purchase refunded.
查看完整题目与答案
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