问题
单项选择题
（）the packing is the same，the lots are different in marks.
A.For
B.Since
C.Because
D.Although
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
（）the packing is the same，the lots are different in marks.
A.For
B.Since
C.Because
D.Although
参考答案：D