《天演论》原名Evolution and Ethics，即“进化与伦理”，初发表于1893年，是哪位英国生物学家的著作（）。

A.林则徐

B.魏源

C.郑观应

D.严复

A.formation

B.form

C.evolution

D.revolution

A.魏源

B.梁启超

C.严复

D.胡适

A.红楼梦

B.茶花女遗事

C.天演论

D.狂人日记

Which of the following is most probably the best title for the passage？

A．Human Evolution Going Nowhere.

B．Sex Ratio Changes in Human Evolution.

C．Ways of Continuing Man's Evolution.

D．The Evolutionary Future of Nature.

A.胡适

B.康有为

C.鲁迅

D.梁启超

What possibly resulted in the evolution from leafless tree to flat leaves？

A．The decrease CO2 in levels.

B．The increase of forests.

C．The drop of temperatures.

D．The change of climates like today.