题干
He swam the river, rushed the tunnel(隧道) and ran away quickly.
A：over; across
B：across; through
C：through; across
D：across; below
答案(点此获取答案解析）
B
He swam the river, rushed the tunnel(隧道) and ran away quickly.
A：over; across
B：across; through
C：through; across
D：across; below
实验时，我们发现