水泥稳定粒料基层施工中，选用水泥时要求水泥的初凝时间应在（）小时以上。 A.3 B.

男性，21岁，低热、盗汗、干咳、乏力，2个月开始时右侧胸痛，体检：气管左移，右下胸部叩诊实音，呼吸音消失，X线胸片示：右侧大量胸腔积液，今为明确诊断，予以行胸腔穿刺。

针对该病人治疗一般不包括下列哪项（）

A.抽液治疗

B.对因治疗

C.糖皮质激素

D.胸腔内注射抗结核药

E.胸腔内注射链激酶

近几年来，我国开始对国内20个制造业行业中820家企业的采购经理进行月度问卷调查，加工汇总他们对所在行业的采购和供应等问题的判断结果，得到制造业采购经理指数(PMI)。

PMI是一个综合指数，由生产、新订单、主要原材料库存、从业人员、供应商配送时间5个分类指数乘以相应的权数后相加得到。：PMI指数反映了当月制造业采购和供应状况相对于上月的变化。各类指数在50%以上，通常反映其对应的某一方面经济扩张；低于50%，通常反映其经济活动衰退。

2010年7月哪一分类指数比上月降低最多（）

A．生产

B．新订单

C．主要原材料库存

D．从业人员

　Le sport en Chine　　Après la Corée du Sud,tous les regards se tournent désormais 1 la Chine et la futur ligne Pékin-Shanghai (13000kilomètres).　　La mise 2 service du KTX est 3 plus importante que la 4 pour le marché chinois est acharnée.　　"La réussite du TGV en Corée est une démonstration 5 de la capacité de notre entreprise à réaliser un projet de cette ampleur à plus de 10000 kilomètres de ses bases .　　Il nous a permis aussi 6 démontrer notre ma trise des transferts technologies dans des pays 7 les cultures sont très éloignées des 8 ,estime Marc Chatelard .　　A ce titre, ce résultat peut effectivement aider à 9 réussir sur le marché chinois."　　A terme,cette voie ferrée de la soie permettrait de relier tout le continent européen, 10 très grande vitesse.

A．sur

B．à

C．pour

D．en

Children start out as natural scientists, eager to look into the world around them. Helping them enjoy science can be easy; there’s no need for a lot of scientific terms or expensive lab equipment. You only have to share your children’s curiosity. Firstly, listen to their questions. I once visited a classroom of seven-year-olds to talk about science as a job. The children asked me "textbook questions" about schooling, salary and whether I liked my job. When I finished answering, we sat facing one another in silence. Finally I said, "Now that we’re finished with your lists, do you have questions of your own about science"

In which of the following paragraph(s) does the author tell us what to say to encourage children in a science discussion
A. The second and third.
B. The fourth and fifth.
C. The fifth and sixth.
D. The seventh.

After a long pause, a boy raised his hand, "Have you ever seen a grasshopper eat When I try eating leaves like that, I get a stomachache. Why"
This began a set of questions that lasted nearly two hours.
Secondly, give them time to think. Studies over the past 30 years have shown that, after asking a question, adults typically wait only one second or less for an answer, no time for a child to think. When adults increase their "wait time" to three seconds or more, children give more logical, complete and creative answers.
Thirdly, watch your language. Once you have a child involved in a science discussion, don’t jump in with "That’s right" or "Very good". These words work well when it comes to encouraging good behavior. But in talking about science, quick praise can signal that discussion is over. Instead, keep things going by saying "That’s interesting" or "I’d never thought of it that way before", or coming up with more questions or ideas.
Never push a child to "Think". It doesn’t make sense, children are always thinking, without your telling them to. What’s more, this can turn a conversation into a performance. The child will try to find the answer you want, in as few words as possible, so that he will be a smaller target for your disagreement.
Lastly, show; don’t just tell. Real-life impressions of nature are far more impressive than any lesson children can learn from a book or a television program. Let children look at their fingertips through a magnifying glass, and they’ll understand why you want them to wash before dinner. Rather than saying that water evaporates, set a pot of water to boil and let them watch the water level drop.

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