25-15=10 Subtract 15____________25 to get 10 A: among B: to C: from

布尔运算包括几种操作 A: Add B: Subtract C: Glue D: Divide

词根tract的语义是to draw，retract、subtract、extract、distract的词义分别是（）。

If you 6 from 9, you will have 3. A: attract B: distract C: subtract D: contract

The recipe says you can _________ yoghurt for the sour cream. A: subscribe B: substitute C: subdue D: subtract

He is old enough to add, multiply, _____ or divide simple sums. A: deduct B: subtract C: reduce D: decrease

下列函数中（ ）可以计算数组元素相乘。 A: add B: subtract C: multiply D: divide

The population growth rate is the birth rate _______________ the<br/>death rate. A: plus B: subtract C: multiply D: divide

​The two neighboring countries will make a (an) ________ effort to stop the illegal drug trade.‎ A: bare B: helpless C: subtract D: stalk

并集（UNION）、差集（SUBTRACT）、交集（INTERSECT）能对二维面域和实心体进行操作。