语法与词汇For the advertiser, one of the greatest appeals of radio is ____ an audience all day long.
语法与词汇I waited there for thirty minutes;that seemed ________ hours to me.
语法与词汇Willa Cather, __________, gained recognition for her books concerning the American frontier.
语法与词汇Most documentary filmmakers use neither actors _______studio setting.
语法与词汇The importance of the hand, and more generally of the body, in children’s acquisition of arithmetic_____.
语法与词汇A challenging new area in inorganic chemistry is ---- the role of transition metals in the biochemical catalysts called enzymes.
语法与词汇Protective behaviors of (amphibians) include hiding (in) the presence of danger and (having) coloration (such) closely matching the environment that the animal is not obvious.
语法与词汇The first inhabitants of the territories ____Canada came across the Bering Strait and along the edge of the Arctic ice.
语法与词汇Hot springs are one of the most characteristic features of areas of recent volcanic activity, although----- in other areas less abundantly.
语法与词汇In the years ahead, health professionals will be able to enhance or restore health far better ________at present.
语法与词汇"Did you see any foreigner present at the party?".
"He was the only foreigner ____ I saw at the party."
语法与词汇Most whole milk undergoes homogenization, -------hot milk is pumped through valves to break up and permanently disperse the fat globules.
语法与词汇Since prehistoric people first applied natural pigments to cave walls, _________ have painted to express themselves.
语法与词汇A lingua franca is any auxiliary language, -------a rudimentary kind, used as a medium of communication between people who speak different languages.
语法与词汇(Most) fish swim by (moving) their tails from (side to) side, with (little relatively) body undulation
语法与词汇Pig iron, wrought iron, and steel contain iron carbides made up of ______ of carbon.
语法与词汇------both safety and reliability have always been primary goals of the railway mechanical engineer.
语法与词汇Unique (among) bivalves, scallops swim extremely (well), propelled by jets of water expelled while (snapped) the shell (shut).