颌骨恶性肿瘤最常见的病理类型为（）。 A.骨肉瘤 B.软骨肉瘤 C.恶性纤维组织细胞

阅读理解。

     A month after Hurricane Katrina, I returned home in New Orleans. There lay my house, reduced to

waist-high ruins, smelly and dirty.

     Before the trip, I'd had my car fixed. When the office employee of the garage was writing up the bill,

she noticed my Louisiana license plate. "You from New Orleans?" she asked. I said I was. "No charge,"

she said, and firmly shook her head when I reached for my wallet. The next day I went for a haircut, and

the same thing happened.

     As my wife was studying in Florida, we decided to move there and tried to find a rental house that we

could afford while also paying off a mortgage (抵押贷款) on our ruined house. We looked at many places,

but none was satisfactory. We'd begun to accept that we'd have to live in extremely reduced circumstances

for a while, when I got a very curious e-mail from a James Kennedy in California. He'd read some pieces

I'd written about our sufferings for Slate, the online magazine, and wanted to give us ("no conditions attached")

a new house across the lake from New Orleans.

      It sounded too good to be true, but I replied, thanking him for his exceptional generosity, that we had no

plans to go back. Then a poet at the University of Florida offered to let his house to me while he went to

England on his one-year paid leave. The rent was rather reasonable. I mentioned the poet's offer to James

Kennedy, and the next day he sent a check covering our entire rent for eight months.

     Throughout this painful experience, the kindness of strangers has done much to bring back my faith in

humanity. It's almost worth losing your worldly possessions to be reminded that people are really nice when

given half a chance.

1. The garage employee's attitude toward the author was that of ____.

A. unconcern

B. sympathy

C. doubt

D. tolerance

2. What do we know about James Kennedy?

A. He was a writer of an online magazine.

B. He was a poet at the University of Florida.

C. He offered the author a new house free of charge.

D. He learned about the author's sufferings via e-mail.

3. It can be inferred from the text that ____.

A. the author's family was in financial difficulty.

B. rents were comparatively reasonable despite the disaster.

C. houses were difficult to find in the hurricane-stricken area.

D. the mortgage on the ruined house was paid off by the bank.

4. The author learned from his experience that ____.

A. worldly possessions can be given up when necessary.

B. generosity should be encouraged in some cases.

C. people benefit from their sad stories.

D. human beings are kind after all.

文化对人的影响有如下特点

A．影响人的交往行为和交往方式

B．影响人的认识活动和思维方式

C．影响深远和维持持久

D．潜移默化和深远持久

VIP版139邮箱的最大附件容量大小为多少（）

A、20M

B、30M

C、50M

D、1G

常见的上升极限位置限制器有（）和（）两种形式。