以下不属于“数与代数删减与削弱的内容是
A.减了珠算内容
B.删减了烦琐的运算步骤
C.削弱了运算的数目要求
D.删减了计算器的运用
正确答案是D
Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.
His poor （ ） may be attributed to lack of motivation rath
