非弹性阻力包括呼吸道阻力、______和组织的黏滞阻力。
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Passage One Questions 26 to 29 are based on the passage you have just heard.
A. Market investigation and sales promotion are closely related.
B. It is impossible to succeed in selling a product without market investigation.
C. There are various ways of making market investigation.
D. Production goes before market investigation.
Ni晶体的错排间距为2000nm，假设每一个错排都是由一个额外的（110）原子面所产生的，计算其小倾角晶界的θ角。
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