清心饮2功效与作用

A. 正确
B. 错误

A. 餐前5min
B. 餐前15min
C. 餐前30min
D. 餐前1h
E. 餐后15mi

A. The LIKE operator cannot be used with single-row subqueries
B. The NOT IN operator is equivalent to IS NULL with single-row subqueries
C. =ANY and =ALL operators have the same functionality in multiple-row subqueries
D. The NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries&e