题干
I like the countryside in summer.The golden wheat fields________as far as the eyes can see.
A：develop
B：spread
C：extend
D：expand
答案(点此获取答案解析）
C
I like the countryside in summer.The golden wheat fields________as far as the eyes can see.
A：develop
B：spread
C：extend
D：expand
平面
, 
,点
,
,直线
,直线
,直线
,
,则下列四种位置关系中,不一定成立的是 （ ）
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