Adult mites of Psoroptes is smaller than adult mites of Sarcoptes.

Intermediate plans are derived from long-range plans and short-range plans are derived from intermediate plans.

【单选题】生成如下数据框的语句是? weight height gender age 1 80 180 male teen 2 75 170 male teen 3 60 165 female adult 4 52 150 female adult A. X ,gender=c("male", "male", "female", "female"),age=c("teen","teen","adult","adult")) B. X ,gender=c("male", "male", "female", "female"),age=c("teen","teen","adult","adult")) C. X ,gender=c(male, male, female, female),age=c(teen,teen,adult,adult)) D. X ,gender=c("male", "male", "female", "female"),age=c("teen","teen","adult","adult"))

adult education

The Old English is derived from__________.

What is said about the relationship between these education organizations in the passage A: The Adult Education Association was the predecessor of the American Association for Adult Education. B: The Office of Vocational and Adult Education is a branch of the U. S. Dept. of Education. C: The American Association for Adult and Continuing Education was developed from the National Association. D: The U. S. Dept. of Education is responsible for the American Association for Adult and Continuing Education.

Someone over 18 years old is（）under British law. A: adult B: grow-up C: an adult D: grown-u

Emo in“Emo 族” is derived from ________.

Emo in“Emo 族” is derived from ­­­­­­­________.

of , relating to , derived from , or characteristic of a mother