单项选择题

患儿男，2岁。肠套叠20小时。下列处理措施最有效的是

A.禁食
B.胃肠减压
C.空气灌肠复位
D.手法复位
E.手术复位
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听力原文：W: Oh, where are we going?M: I want to show you something.W: I know, but what is it?M: A farm. It's just down this roaD.It's a small place, but at least it would be our own,W: A farm? How can we afford to buy a farm?M: It isn't very large, only 40 acres. We wouldn't have to pay very much right now.W: Is there a house on the place?M: A small one, two bedrooms, but it needs to be fixed up a littlE.I can do the job myselF.W: OK. Is there enough space for a kitchen garden?M: There is about half ah acre around the housE.That's plenty of spacE.W: Then we can grow our own fresh vegetables. And maybe keep a few chickens, couldn't we?M: Yes, and we can probably grow a lot of our own fooD.W: What are you thinking about growing, if we do take this place?M: Well, it really isn't big enough for corn. I thought we might try to raise a crop of potatoes.W: Potatoes? There are a lot of work.M: We are used to hard work, aren't we?W: Yes, we are, but the money. Do we have enough to get started? It seems like a dream.M: I think we've saved enough. We can pay a little on the farm and maybe put a few dollars down on the tractor, too.(23)A.Buy a tractor.B.Fix a housE.C.See a piece of property.D.Sign a business contract.
A.W:
B.
W:
C.
W:
D.
W:
E.
W:
F.
W:
G.
M:
H.
M:
I.
(23)
A.Buy
J.
B.Fix
K.
C.See
L.
D.Sign
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听力原文： When US spacewoman Joan Higginbotham is not flying and working in space, she might be found somewhere on earth giving a speech. Higginbotham, who grew up in Chicago, and became an engineer before joining NASA, that is, the National Air and Space Administration, gives about a dozen speeches a year. Each speech is different, because she tailors her remarks to each audiencE.Through interviews and emails, she finds out in advance her listeners' educational level and what information they want to know. On the subject of space walks, for example, audiences vary in their interests and how much complexity they can comprehenD.To elementary school children, Higginbotham may discuss a problem that many kids want to know about. 'How do spacemen in a spacesuit eat, drink and go to the bathroom?' Her answer is, 'The spacesuit is really a small spacecraft with room for food and water containers and a waste collection system.' To a high school audience, she might satisfy a curiosity that often arises in her pre-speech interviews with students who obviously have seen many science fiction movies. 'Do spacemen carry weapons in case they encounter enemies in space?' Her answer is, 'No!' To scientists, she might provide technical details on such topics as the design of spacesuit that protects spacemen from the deadly temperature extremes of spacE.Just as elaborate preparation is required for success in space, Higginbotham says that it's important for speakers to learn as much as possible about their listeners before a speech because every audience is different.(30)A.She was a tailor.B.She was an engineer.C.She was an educator.D.She was a public speaker.
A.'
B.
(30)
A.She
C.
B.She
D.
C.She
E.
D.She
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