For small angles of inclination,if the KG were equal to the

A. few

B. scarce

C. little

D. small

Cross curves of stability show which of the following？

A.The righting arms at various angles of inclination and displacement

B.The metacentric height at large angles of heel

C.The height of the center of buoyancy at various angles

D.The metacentric radius at various displacements

What was scientists' understanding of cryptic species?

A．They occurred in equal numbers in all biogeographical regions.

B．They were mostly found in insects and reptiles.

C．They were likely to be in tropical rather than temperate regions.

D．Both Ｂ and Ｃ.

For small angles of inclination, if the KG were equal to the KM, then the vessel would have __________.

A.position stability

B.negative stability

C.neutral stability

D.maximum stability

The role of women in Britain has changed a lot in this century, () in the last twenty years. The main change has been () giving women greater equality with men. Up to the beginning of this century, women seem to have had () rights. They could not vote and were kept at home. () , as far as we know, most women were happy with this situ ation. Today, women in Britain certainly () more rights than they used to. They were () the vote in 1919. In 1970 a law was passed to give them an equal () of wealth in the case of divorce, () the Equal Pay Act gave them the right of equal pay with men for work of equal value in the same year. Yet () these changes, there are still great difference in status between men and women. Many employers seem to () the Equal Pay Act, and the average working women is () to earn only about half that a man earns for the same job. () a survey, at present, only one-third of the country’s workers are () women. This small percentage is partly () a shortage of nurseries. If there were () nurseries, twice as many women might well go out to work

A.but

B.and

C.because

D.although

At all angles of inclination, the metacenter is ______.

A.vertically above the center of buoyancy

B.vertically above the center of gravity

C.at the intersection of the upright vertical centerline and the line of action of the buoyant force

D.at the geometric center of the underwater volume

Marguerite met Mrs. Flowers in the town of Stamps where the

B、lacks and whites were equal.()

GM cannot be used as an indicator of stability at all angles of inclination because ______.

A.M is not fixed at large angles

B.there is no M at large angles

C.G is not fixed at large angles

D.there is no G at large angles