问题
选择题
It is partly ______ the summer day is longer that everything has a larger time to warm up. [ ]
A. for
B. that
C. the reason
D. because
答案
答案：D
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It is partly ______ the summer day is longer that everything has a larger time to warm up. [ ]
A. for
B. that
C. the reason
D. because
答案：D