（）is the main reason that reduces the power advantage of a two-stroke engine over a same size four-stroke one to about（）

A . The metacenter does not remain in the same position for large angles of inclination B . The center of gravity shifts due to inclination C . The center of gravity shifts above the metacenter as the vessel is inclined D . The mean draft will change as the vessel is inclined

A . To revalidate the total solution B . To overcome objections to the solution C . To review the pricing with the customer D . To ensure the customer has the correct applicatio

A . There is a mismatch in encapsulation types B . The wrong type of cable is connected to the interface C . The interface has been configured with the shutdown command D . The interface is not receiving any keepalives E . The interface needs to be configured as a DTE device F . There is no encapsulation type configured

A .  To selectively apply drop actions to specific interfaces B .  To enable IOS to droptraffic for signatures configured with the Drop action C .  To support load-balancing configurations in which traffic can arrive via multipleinterfaces  D .  This is nota valid IOS command

A . It makes for an easy connection B . It gives a spring effect to cushion the shock C . It eliminates the necessity of a swivel D . It does not chafe

A . why B . that C . which

A . prevent the diesel engine surging B . prevent governor from being damaged because of swing C . reduce the probability of the crank shaft being torsional vibrated and resonated D . prevent the main engine being overload or overspeed

A．Lacking food. B．Forest deceasing. C．The coyote existing. D．Not clear yet.

[A] Young people start working younger. [B] Recent graduates have entered the labor market. [C] More people must have tow jobs to support their families. [D] More women have entered the job market.

A.it is artificially illuminated B.it is made up of a concentrated beam of light C.it sends out heat in all directions D.its heat is increased by the heat of the sun

A．regular investment B．the excellent staff C．its product range

A．The rooms have already been booked solid. B．Mr. Baker"s company has overdue payments. C．The number of guests is not enough. D．Mr. Baker"s company has already received a discount before.

A．The increasing number of the full-time support staff. B．The reduction in the government funding for higher education. C．The rising inflation in the country. D．The increasing number of the students.

A．domestic food production has decreased B．the government is providing less support for agriculture C．imported food is driving prices higher D．people are buying less imported food

A．Drought. B．Toxin in the crop. C．The mosaic virus. D．The barren soil.

A．相干散射 Coherent scattering B．光电效应 Photoelectric effect C．电子对效应 Electron pair effect D．康普顿效应 Compton effect