765×213÷27＋765×327÷27'_7Y)`;z(],R.G-W1S3o)s2o
算式：提示-R)j5^,q7^*j-f8Q-h'_7Y)`;z(],R.G-W1S3o)s2o
=3P-X7E;J9I0X)H6L*N0[+O-V;e)c,\*`'_7Y)`;z(],R.G-W1S3o)s2o