在相频特性曲线上,当振动体频率与传感器频率相等时,两者之间的相位差c为()A.0°

题型:单项选择题

问题:

在相频特性曲线上,当振动体频率与传感器频率相等时,两者之间的相位差c为()

A.0°

B.90°

C.180°

D.270°

考点:试验检测员水运工程结构试验检测人员考试(综合练习)水运工程结构试验检测人员考试(综合练习)题库
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根据短文意思填空

     Many people have 1.d__________ of becoming a famous singer or musician. 2.H__________

speaking, they 3.a__________ great importance to becoming rich and famous. Some may

4.f__________ a band in high school and give 5.p__________ on pubs or clubs. The Monkees started

in a different way. They began as a TV show. There was only one musician in the band. The other three

were actors. They had to 6.r__________ on other musicians to help them. They just 7.p__________ to

sing. They became even more popular than the Beatles. Not everyone likes the life after they become

famous. They can't go anywhere 8.w__________ being followed. Their 9.p__________ life is regularly

discussed. Some become so 10.s__________ to it that they decide to leave the stage

题型:单项选择题

为下面诗词创作旋律,要求旋律流畅,音乐形象符合诗词意境。

题型:单项选择题

细菌性肝脓肿与阿米巴肝脓肿的鉴别点有()

A.血清学检查阿米巴抗体阴性

B.高热

C.肝脏体积明显增大

D.黄疸

E.血常规白细胞总数及中性粒细胞显著增多

题型:单项选择题

点火提前角过小将使发动机()造成回火或放炮。

A、排气温度过高

B、过热

C、功率下降

D、耗油量大

题型:单项选择题

幼儿班级的特点是()

A.生活节律性

B.班级的组织性

C.全面发展性

D.活动多样性

E.保教渗透性

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