第二部分：阅读理解（共25小题：每小题2分，满分50分）
阅读下列短文，从每题所给的选项中，选出最佳选项。
“Sam” the koala, the most famous survivor of Australia's worst-ever wildfires, is healing well thanks to the efforts of caretakers at a rescue—and she even has a new boyfriend, “Bob”
Sam, who captured hearts around the world after she was photographed drinking from a firefighter's water bottle, has also won the affection of "Bob", another koala whose paws were scorched, caretaker Lynn Raymond said Thursday.
Neither koala is likely to be healthy enough for release for at least four months, and both are being comforted by caretakers for their scorched paws every few hours.
Global interest in the fate of Sam has been intense since a photograph of firefighter David Tree offering her a bottle of water in a burned-out forest was splashed across the Internet, in newspapers and on television broadcasts. The telephone at the shelter has rung continually with callers eager for update on the creature's condition.
“It's crazy,” Raymond said with a laugh. "（But） everybody has been absolutely wonderful."
Sam was found moving on scorched paws by a fire patrol Sunday. Tree then held out a bottle of water for her to drink, which she eagerly accepted, holding Tree's hand as he poured water into her mouth.
After suffering second-and-third-degree burns to her paws, Sam has been sharing a cage with Bob, who took an immediate interest in her when she arrived on Sunday.
Both Sam and Bob were given painkillers when they first arrived, but they're off the drugs now. The two are still receiving antibiotics（抗生素）and have their bandages changed regularly to avoid infections.
The koalas are likely to be in the shelter at least four months, depending on how quickly their burns heal.
41．What is Sam well-known for?
A．Her falling in love with Bob. B．Her taking part in fighting the fire.
C．Her saving a firefighter. D．Her drinking a firefighter's water.
42．How do people show their concern about Sam?
A．They call the shelter to learn about her latest condition.
B．They take care of her via the media.
C．They donate bottles of water or money for her.
D．They send many photos of her to the Internet.
43．From the passage we know that Bob and Sam________
A．are taking some drugs other than painkillers
B．are still under treatment
C．have completely healed from the treatment
D．are free of infections
=1-αe-βt=1-0.4×e-0.024×6×30=1-0.4×0.0133=1-0.0053
，其中Q为砂井打入深度与整个压缩层厚度的比值，砂井未穿透，属于单面排水，H1为土层厚度，H2为砂井以下压缩层厚度。
