【单选题】The author suggests that sex education classes
A.
are a major cause of casual, unprotected sex.
B.
should include the role of sex in a meaningful relationship.
C.
should not include the mechanics of fertilization and birth control.
D.
have taken over a role that rightfully belongs to parents.
【判断题】质量手册是为已完成的活动或达到的结果提供客观证据的文件。
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为W,则传递给气体的热量为__________W.(填:分式数字)
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为 10J ,则传递给气体的热量为 _____ J 。
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为 W ,则传递给气体的热 量为 __________ .
【单选题】All workers, regardless of their sex and education, are required to _____ at the age of
【简答题】DNA所处介质的离子强度越低 ,熔解温度越 ________ 。
【单选题】The concept of universal elementary education, regardless of sex, had been born, but it was still in the ________ of the single-sex school.
【判断题】质量手册 是为已完成的活动或达到的结果提供客观证据的文件。
【单选题】Sex education is a sensitive area for some parents, and thus it should remain _________.