向现有学生(stu)表中的gender列，添加性别只能输入是'男'或'女'的约束。 alter table stu add constraint ck_gender ① (gender in ('男','女')) A: default B: check C: primary key D: unique

In a gender interview, the researcher asked a little boy Fei Fei, "If you wear a skirt, will you become a boy or a girl?" Which dimension of children's gender perception was examined? () A: Gender identity B: Gender stability C: Gender consistency D: Gender stereotypes

以下词组中不是“性别歧视”的是 () A: Gender penalty B: gender gap C: gender discrimination

_________ is a category that refers “to the socially imposed dichotomy of masculine and feminine roles and character traits” （Kramarae & Treichler 1985： 173）。 A: Social gender B: Cultural gender C: Natural gender D: Biological gender

- Frau Chen, wie schreibt ____„Stück“? Mit„k“oder„ck“ ?-„Stück“schreibt ___ mit„ck“ .

Whatdoes“gender”mean?

Gender: Boy/Girl

下列选项中,用于将 student 表按照 gender 字段进行分组查询,并且查询 score 字段值之和小于300的分组的 SQL 语句是 A: SELECT gender , SUM ( score ) FROM student GROUP BY gender HAVING SUM ( score )<;300; B: SELECT gender , SUM ( score ) FROM student GROUP BY gender WHERE SUM ( score )300; C: SELECT gender , SUM ( score ) FROM student WHERE SUM ( score )<;300 GROUP BY gender ; D: 以上语句都不对

通过CK指数（CK-MB/总CK）可以间接判断CK来源，如CK-MB超出上限，而CK-MB/总CK＜4%，可能原因为（）

People often think that "girls like pink and playing house; boys like blue and like to play with toy cars and planes." This is (). A: Gender bias B: Sexism C: Gender label D: Gender stereotypes