An instrument that maintains a continuous record of humidity changes is called a（）.

A . nitrogen B . oxygen C . carbon dioxide D . water vapor

A . CO B . fresh air C . the tested compartment's air D . water

A . used to measure the speed of wind B . in which the pressure of air is measured C . that tells which dirction a storm is coming from D . used to measure the height of wave

A . purifies B . combinations C . concentrations D . filter

A . generally shorter than the others and is used to steer with B . is longer than the others and is used as the stroke oar C . is raised in the bow of the boat for the steersman to steer by D . longer than the others used for steering

A . over an electrically heated platinum filament B . where it is mixed with nitrogen C . where it is ignited by a sparking device D . where its specific gravity is measured

A . cylinder pressure B . flame intensity C . exhaust gas temperature D . crankshaft axial alignment

A . charted record of atmospheric temperature over time B . charted record of atmospheric pressure over time C . graphic record of combustible gases measured in an atmosphere D . graphic record of vapor pressure from a flammable/combustible liquid

A . weather vane，wind vane or wind sock B . hydrometer C . hygrometer D . sling psychrometer

A．is cited with high frequency in. the publications of other scientists B．is accepted immediately by the scientific community C．does't Jot relegate particulars to the role of dam D．introduces a new valid generalization

A．He is surprised by it. B．He disagrees with it. C．He thinks it is too soon to tell. D．He is alarmed by it.

A.Stevie finished tiis study at a toy instruments school B.Stevie began to study in a real instruments school C.Stevie gave up all his toy instruments and began to buy many real instruments D.Stevie started to play real instruments

A.its B.that C.it D.this

A．A.does not give; wishes B．B.had not given; had wished C．C.would not have given; had wished D．D.would not have given; would wish

A．was first founded by railroad companies. B．has designed an online course for drivers. C．has helped 15,000 drivers to get their licenses. D．collects membership fees from professional truckers.

A．is often quoted in the work of other scientists B．is careful not to make a value judgment about the use of data C．is applauded by all distinguished experimentalists D．generates a novel and well-founded generalization 此题为多项选择题。

However, the undying role is that to be successful, bands have to have a novel look. "The 12 Girls Band was the first group to give big live shows and show creativity in how they present their performances. The Beijing Red Poppy Ladies Percussion group, formed in 1999, has made a name for itself because they are the only band that exclusively plays drums and percussion instruments. Bands that don't have ' a thing' are sure to die fast", Jin said. How many members are involved in the band？ A．8. B．10. C．12. D．14.

Escrow: a financial instrument or an asset held by a third party on behalf of () other parties that are in the process of completing a transaction.(第三方托管)