问题
选择题
(17
|
答案
(17
+277 27
-117 17
)÷(1337 39
+812 17
-517 27
)38 39
=(
+466 27
-466 17
)÷(466 39
+233 17
-233 27
)233 39
=466÷233
=2.
故选A.
(17
|
(17
+277 27
-117 17
)÷(1337 39
+812 17
-517 27
)38 39
=(
+466 27
-466 17
)÷(466 39
+233 17
-233 27
)233 39
=466÷233
=2.
故选A.