Some sea urchins海胆 have venomous (toxin) spines
A、sensuous(feeling)C
暂无解析
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Eyespots, the most rudimentary eyes, are found in protozoan原生动物 flagellates 鞭毛虫 , flatworms 扁形虫 , and segmented worms片段 蠕虫 .
Ella Grasso, elected governor of Connecticut in 1974, supported the enactment (given, granted) of a freedom-of-information law.
Despite the proliferation of other faster modes of transportation, the railroads remain the largest carriers of intercity freight in the United States.
ThefuturesurvivalofthebaldeagleisstillanimportantAmericanecologicalconcern.
