CAN-BUS数据总线传递数据的开始域将带有5V的1位送入()。 A.ECU B.C

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问题:

CAN-BUS数据总线传递数据的开始域将带有5V的1位送入()。

A.ECU

B.CAN-high

C.CAN-low

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供体菌通过性菌毛连接受体菌,将质粒转移给受体菌的过程称为______。

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慢性浅表性胃炎内镜的表现应为()

A.可见圆形或椭圆形凹陷,周围有黏膜充血、水肿

B.黏膜苍白或花斑状,黏膜萎缩变薄,皱襞变浅甚至消失,黏膜下血管透见

C.黏膜肥厚、水肿,表现为皱襞粗大、似脑回状,充血不能展平,颜色深红

D.黏膜充血、斑片状发红、黏膜水肿、反光增强、红白相间,发炎黏膜表面有较多透明或黄白色分泌物附着,难以冲掉

E.凹陷周围黏膜皱襞呈放射状集中

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对于过敏性紫癜肾炎的治疗,下列哪种说法不正确()

A.有过敏症状者,可予抗过敏治疗

B.停用一切可疑的过敏药物及食物,避免接触可疑过敏原

C.即使肾脏病变轻微,也需予糖皮质激素联合细胞毒药物治疗

D.达到新月体肾炎诊断标准者,予强化免疫抑制疗法

E.终末期肾衰者可予透析及肾移植治疗

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My family and I lived across the street from Southway Park since I was four years old. Then just last year the city put a chain link fence around the park and started bulldozing (用推土机推平) the trees and grass to make ways for a new apartment complex. When I saw the fence and bulldozers, I asked myself, "Why don’t they just leave it alone"

Looking back, I think what sentenced the park to oblivion (被遗忘) was the drought (旱灾) we had about four years ago. Up until then, Southway Park was a nice green park with plenty of trees and a public swimming pool. My friends and I rollerskated on the sidewalks, climbed the trees, and swam in the pool all the years I was growing up. The park was almost like my own yard. Then the summer I was fifteen the drought came and things changed.

There had been almost no rain at all that year. The city stopped watering the park grass. With- in a few weeks I found myself living across the street from a huge brown desert. Leaves fell off the park trees, and pretty soon the trees started dying, too. Next, the park swimming pool was closed. The city cut down on the work force that kept the park, and pretty soon it just got too ugly and dirty to enjoy anymore.

As the drought lasted into the fall, the park got worse every month. The rubbish piled up or blew across the brown grass. Soon the only people in the park were beggars and other people down on their luck. People said drugs were being sold or traded there now. The park had gotten scary, and my mother told us kids not to go there anymore.

The drought finally ended and things seemed to get back to normal, that is, everything but the park. It had gotten into such bad shape that the city just let it stay that way. Then about six months ago I heard that the city was going to "redevelop" certain worn-out areas of the city. It turned out that the city had planned to get rid of the park, sell the land and let someone build rows of apartment buildings on it.

The chain-link fencing and the bulldozers did their work. Now we live across the street from six rows of apartment buildings. Each of them is three units high and stretches a block in each direc- tion. The neighborhood has changed without the park. The streets I used to play in are jammed with cars now. Things will never be the same again. Sometimes I wonder, though, what changes another drought would make in the way things are today.

Why was the writer told not to go to the park by his mother()

A. Because it was being rebuilt.

B. Because it was dangerous.

C. Because it became crowded.

D. Because it had turned into a desert.

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