2009年，海水养殖业产量占水产品养殖业的比重为（）。A．0.775B．0.334C．0.608D．0.437

hich factors must be most considered when developing acceptance creteria？（）

A.Match with requirements B.User availability C.Ablity to benchmark system D.Schedule of system delivery

A、is

B、are

Which of the following statements may be supported by Morse and Weiss？

A．Physiological needs are the most basic.

B．There is a hierarchy of needs that must be met.

C．Economic factors are the greatest inducement.

D．Personal esteem and the gaining of power is the most important factor.

A．mathematicians are better able to solve problems than scientists

B．changes in axiomatic propositions will inevitably undermine scientific arguments

C．well-defined situations are necessary for the design of reliable experiments

D．some factors in most situations must remain unknown

A．mathematicians are better able to solve problems than scientists

B．changes in axiomatic propositions will inevitably undermine scientific arguments

C．well-defined situations are necessary for the design of reliable experiments

D．some factors in most situations must remain unknown

A．Size.

B．Style.

C．Location.

D．Age.

All factors must be taken into (considerate)______when we think over how to handle the problem.

A、Idioms usually can be translated literally.

B、The meaning of an idiom must be understood as a whole.

C、Idioms develop from the specific culture and historical background.

D、Most idioms are fixed in structure.