如果一位老师的年纪是30岁，那么他可能会被下列那些语句筛选出来？

A. learning_rate

B. l_rate

C. learning_r

D. l_r

A. GBDT

B. XGBoost

C. LightGBM

D. Random Forest

A. SELECT cust_id FROM Orders WHERE order_num IN (SELECT cust_id FROM OrderItems WHERE prod_id = ＇RGAN01＇);

B. SELECT cust_id FROM Orders WHERE order_num IN (SELECT order_num FROM OrderItems WHERE prod_id = ＇RGAN01＇);

C. SELECT * FROM Orders WHERE cust_id IN (SELECT cust_id FROM OrderItems WHERE prod_id = ＇RGAN01＇);

D. SELECT * FROM Orders WHERE cust_id IN (SELECT order_num FROM OrderItems WHERE prod_id = ＇RGAN01＇);

A. 数据

B. 表

C. 数值

D. 文本

A. 概率密度图

B. 箱形图

C. 饼图

D. 散点图

A. RTRIM(str)

B. LTRIM(str)

C. TRIM(str)

D. 以上都可以