新生儿特殊生理状态是()、()、()、()。
In1900,theenergyderivedfromburningpetroleumwasonlyfourpercent______ofcoal.
Theteachergave_____theexaminationpaper.
There______nothingmorefordiscussion,themeetingendedearlierthanexpected.
Homingpigeonisusefulasa______carrierbecausewhentakenfromhome,itwillreturnatthefirstopportunity.
