This is a country of () population. ( ) A: small B: turbulent C: tragic D: scandalous

Boundary layer occurs in _. 边界层存在于___。( ) A: laminar, transitional and turbulent flows 层流、湍流和过渡流中 B: laminar flow only 仅存在于层流中 C: turbulent flow only仅存在于湍流中 D: transitional flow only仅存在于过渡流中 E: transitional and turbulent flows only 仅存在于过渡流和湍流中

The pilot announced that there was some ___________ ahead. A: turbulent B: annoy C: turbulence D: season

A turbulent storm was a major factor in the defeat of the Spanish Armada. A: noxious B: violent C: mysterious D: pathetic

A ______ racial incident in the summer of 2003 was cause for great public and administrative concern. A: turbulent B: sensational C: marvelous D: sentimental

characterized by conflict, disorder, or confusion; not controlled or calm; moving unsteadily or violently A: angst B: hamster C: meager D: turbulent

There will be some air______in 10 minutes.Please return to your seat and fasten the seat belt. A: turbulent B: shake C: turbulence D: shaking

The police couldn’t control the （） demonstration, so troops came to give them a hand. A: powerful B: turbulent C: cumulative D: indignant

The police couldn't control the______ demonstration, so troops came to give them hand. A: innumerable B: turbulent C: compact D: indignant

If<br/>the Reynold’s number of blood flow is 3500, then the flow<br/>will be A: laminar<br/>flow B: idea flow C: turbulent flow D: smooth flow