脐带帆状附着(cord velamentous insertion)
On inflatable liferafts，the operating cord should be renewed by（）.
Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）
脐带脱垂(prolapse of umbilical cord)
The operating cord on an inflatable liferaft also serves as a（）.
脐带先露(presentation of umbilical cord)
宫颈息肉(cervical polyp)
The operating cord on an inflatable liferaft should be renewed by（）.
练声曲vocalization
After a liferaft is launched，the operating cord（）.
炎性息肉(inflammatory polyp)
vocal nodules
Mountain gorillas communicate through vocalizations and physical gestures and movement.
Language is a system of arbitrary vocal symbols used for human _____.
Coral is a kind of small organism called limestone living within a skeleton made of a substance called polyps.
Vocal intonation and eye contact can ______________ conversations.
6. A. card B. cod C. cord D. code
diabetes Pakinson spinal cord injuries
The junction box in the spinal cord is where one nerve connects with the next nerve by releasing these little brown packets of chemical information called neurotransmitters in a linear one-on-one fashion.
Controlling your pitch means that you deliver it in a very narrow vocal range.
The underlined phrase "the most vocal" in Paragraph 3 means ______.
一旦明确诊断（神经根型,脊髓型,椎动脉型)颈椎病时,不能再进行幅度较大锻炼（Once you have a clear diagnosis （nerve root type, spinal cord type, vertebral artery type) of cervical spondylosis, you should not do large-scale exercise)
Consonants, based on whether the vocal cords are vibrating in their production, can be classified into ________ consonants and voiceless consonants.
1、弹吉他时，手指不断的变换位置按住琴弦，并弹奏不同粗细的琴弦来发出不同音调的音乐。请解释并调研吉他的发声机制，并给出相关公式。 When playing the guitar, the fingers constantly change their positions, hold down the strings, and play strings of different thicknesses to produce different tones of music. Please explain and investigate the vocal mechanism of guitar and give the relevant formula.
