汉成帝时编著的农书是（ ）。
汜胜之，在汉成帝（前33～前7年在位）时为议郎，知农事。他所编著的《汜胜之书》，总结了我国古代黄河流域劳动人民的农业生产经验，记述了耕作原则和作物栽培技术，对促进我国农业生产的发展，产生了深远影响，一般认为是我国最早的一部农书。
I marvel that he _____, it having been said he had taken his final departure for Portugal.
The doctor suggested that he _____ an operation at once.
The crowd cheered _____ as she took the smoke-blackened bundle out of my arms—I had saved her baby!
Over five times more studies on life satisfaction have been published since 1979 than at any time_____
No particular stage of life is less happy than another, not the tumultuous teenage years or the mid-life period, not _____ the waning decades of old age.
The adoption of the new policy would relieve the factories_____a tremendous burden.
In the nineteenth century，Samuel Gridley Howe founded the Perkins School for the Blind，( )for children in Boston，Massachusetts.
My grandparents always enjoy the( )of their relatives.
The UN put the( )forward so as to better cope with the tense situation in the Middle East.
This country is( )deflationary pressure and the country′s policy-makers should create a better policy mix to cope with the new economic environment.
