翻译句子。 1. 他有两个儿子,一个是教师,另一个是医生。 He has two sons, __________ is a teacher, __________ __________ is a doctor. 2. 操场上有许多男孩,一些在踢足球,另一些在打篮球。 There are many boys on the playground. __________ are playing football, __________ are playing basketball.
【简答题】Most external parts of the body have ordinary English names as well as anatomical names. Doctors normally use the English names, even when talking to each other. Please write out the ordinary English ...
【单选题】In his 2003 book, In the Blink of an Eye, Parker argues that the external, hard body parts of fauna responded most directly to the riot of selection pressures of the Cambrian explosion.
A.
a number of carefully chosen things
B.
a process in which environmental or genetic infl uences determine which types of organism thrive better than others, regarded as a factor in evolution