如图所示,岸边有一物体B,潜水员从水中能看见B的像B1,请作出一条眼睛能看到B1的折射光路图.
—Time . It’s likely that we’ll miss the deadline.
—Don’t worry. We have already got through 80% of the job.
A.is running out
B.has run out
C.is being running out
D.has been run out
土壤蒸发