The plus sign is used in addition and the minus is used in subtraction.加号用于加法;减号用于减法....using concrete objects to teach addition and subtraction.用实物来教加减法There will be simple tests in addition, subtraction, multiplication...
He's on the make everywhere and cultivates all the Chicago hotshots.他现在正往上爬,到处结交芝加哥的名流.The hotshots who run hedge funds also have some skill to offer, academic research suggests.一项学术研究提出,那些(银行)大亨运行对冲基金的同时又有提供该基金的能力....
“ 屏蔽 ” 条件也叫做 “ 选通. ”The " mask " facility is also often called the " enable ".取补线路可任意选通减法器的输出或补取线路的输出.A complementing circuIt'selects either the subtracter output or the output of the complementing circuit.双向三极型可控硅 ...