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【单选题】
CD-ROM 盘存储数据的原理是,利用在盘上压制凹坑的机械方法,凹坑的边缘用来表示 ,而凹坑和非凹坑的平坦部分表示 ,然后用 来读出信息。
A.
1 、 0 、激光
B.
0 、 1 、激光
C.
1 、 0 、磁头
D.
0 、 1 、磁头
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【单选题】听力原文: A fire broke out in a Buenos Aires nightclub, which packed with young revelers celebrating the New Year holidays. It killed at least 175 people when a crowd was trapped by locked doors, official...
A.
The doors were locked.
B.
A flare fired into the club's ceiling.
C.
There was a rock concert.
D.
People are too crowded.
【判断题】一简谐运动的表达式为 ,已知 t = 0 时的初位移为 0.04 m ,初速度为 0.09 m/s ,则该简谐运动的振幅为 0.05m .
A.
正确
B.
错误
【单选题】根据现行消费税的规定,下列说法不正确的是()。
A.
纳税人将自产的应税消费品用于换取生产资料,按同类消费品的平均价格计算应纳消费税
B.
卷烟批发企业之间销售卷烟,不适用批发环节加征从价税的规定
C.
白酒生产企业向商业销售单位收取的“品牌使用费”不论企业采取何种方式以何种名义收取价款,均应并入白酒销售额中征收消费税
D.
纳税人通过自设非独立核算门市部销售的自产应税消费品,应当按照门市部对外销售额或者销售数量计算征收消费税
【单选题】听力原文: A fire broke out in a Buenos Aires nightclub, which packed with young revelers celebrating the New Year holidays. It killed at least 175 people when a crowd was trapped by locked doors, official...
A.
The doors were locked
B.
A flare fired into the club's ceiling.
C.
There was a rock concert.
D.
People are too crowded
【单选题】The people in the Kiss Nightclub were trying to escape from the fire but were ______ in smoke.
A.
covered
B.
trapped
C.
arrested
D.
scared
【简答题】一简谐振动的表达式为 ,已知 t = 0时的初位移为0.04 m,初速度为0.09 m/s,则振幅A =____ m、初相 =____ .(前空填4个字符,后空填6个字符)
【单选题】All the settlers nearby demanded that the nightclub _______ away as soon as possible because of the loud noise at night.
A.
must be moved
B.
might be moved
C.
should move
D.
be moved
【简答题】一简谐振动的表达式为 ,已知 t = 0 时的初位移为 0.04 m,初速度为 0.09 m/s,则振幅 A =________m。
【单选题】一简谐振动的表达式为y=Acos(3t+φ) ,已知t= 0时的初位移为0.04 m,初速度为0.09 m/s,则振幅A为多少?
A.
0.05m
B.
0.03m
C.
0.06m
D.
1m
【简答题】一简谐振动的表达式为,已知 t = 0时的初位移为0.04 m,初速度为0.09 m/s,则其振幅A =_____________。
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