Gbase数据库采用行存储方式

A. np.prod

B. np.var

C. np.mean

D. np.std

A. 职称=＇副教授＇ OR 性别=＇男＇

B. 职称=＇副教授＇ AND 性别=＇男＇

C. BETWEEN ＇副教授 ＇ AND ＇男＇

D. IN(＇副教授＇,＇男 ＇)

A. COUNT()

B. SUM()

C. AVG()

D. MAX()

A. feature_importa nce

B. f_importance

C. importance

D. feature_importa nces_

A. SELECT stu_name, COUNT(stu_sex) FROM student GROUP BY stu_sex;

B. SELECT stu_sex, COUNT(stu_sex) FROM student GROUP BY stu_sex;

C. SELECT stu_name FROM student GROUP BY stu_sex;

D. SELECT stu_sex, COUNT(stu_name) FROM student GROUP BY stu_name;

A. TF-IDF

B. RNN

C. LDA

D. CNN

A. finished

B. dirty

C. start

D. error