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【单选题】

B
A Bus Timetable (乘车时刻表)

DAILY SERVICE: Sunnyvale —— Pleasanton
Departing (出发) Time Arriving Time
Sunnyvale 6:00 a.m. Pleasanton 8:00 a.m.
Pleasanton 8:30 a.m. Sunnyvale 10:30 a.m.
Sunnyvale 11:00 a.m. Pleasanton 1:00 p.m.
Pleasanton 1:30 p.m Sunnyvale 3:30 p.m.
Sunnyvale 4:00 p.m. Pleasanton 6:00 p.m.
One Way $8.00/Round Trip (往返) $15.00
BWhat time is the first bus to Pleasanton

A.
6:00a.m.
B.
8:00a.m.
C.
1:00 p.m.
题目标签:时刻
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】已知F(s)=(s+1)/(s 2 +5s+7) ,则其对应时域信号f(t)在∞时刻值为

A.
1
B.
0
C.
D.
无法在不做拉普拉斯反变换的情况下求出
E.
以上均不对