饲料配方设计中,在钙和磷同时缺乏的情况下,应首先用骨粉满足()

题型:填空题

问题:

饲料配方设计中,在钙和磷同时缺乏的情况下,应首先用骨粉满足()

考点:畜牧、兽医科学畜牧生产学畜牧生产学题库
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急性肺栓塞的实验室检查有()

A.X线胸片可见肺实质病变,肺动脉高压

B.血气示动脉氧分压(PaO2)<10.7kPa(80mmHg)

C.心电图表现为电轴右偏型

D.超声心动图示右心室扩大

E.转氨酶增高

题型:填空题

阅读表达(共5小题,每小题2分,满分10分))阅读下面短文,根据短文内容回答下列问题,把答案写在每小题后的横线上。

Imagine this: your parents go away on business, but you have to stay at home alone. Would life be as easy as when your parents are around? Would it be a perfect holiday for you?

'”I can fill an empty stomach with tomato and egg soup, but that's all. I think many of my classmates are the same. We wouldn't know what to do, or how to look after ourselves," said Zheng Chenyu. "And I'd forget something important. I'd probably watch television and burn the soup. "

“As soon as I leave home, I'll learn to cook. But now parents do almost everything for us. We’re very lazy, "she said.

Most teenagers have only time for their homework. They don't learn any life skills until they go to college.

However, Sima Yige doesn't think so.

"I think I'd be all right. I wouldn't just eat sandwiches or fruit. I know how to cook, some sim­ple dishes because my mum showed me," the 13 - year - old boy said. In his opinion, many teen­agers depend too much on their parents, and there is much more to learn than cooking, like "tidying up your room or even dressing yourself properly."

For most teenagers it wouldn't be a holiday at all.

小题1:Why would Zheng Chenyu probably burn the soup?

________________________________________

小题2: When will Zheng Chenyu learn to cook?

________________________________________

小题3:Translate the underlined sentence "They don't learn any life skills until they go to college. " in this passage.   ________________________________________

小题4:The underlined phrase "depend too much" on in the passage means __________ in Chinese.

小题5: Would life be as easy for teenagers living alone as when their parents are around?

________________________________________

题型:填空题

若9a2+ma+4是一个完全平方式,则m=______.

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下列对胃酸作用的描述,错误的是

A.激活胃蛋白酶原
B.促进消化液的分泌
C.杀菌
D.使食物中蛋白质变性,易于分解
E.促进维生素B12的吸收

题型:填空题

当APU转速大于95%时,三通选择活门转换()

A.比率控制活门(PCV)与加速限制活门相连

B.比率控制活门(PCV)与引气活门相连

C.比率控制活门(PCV)同时与加速限制活门和引气活门相连

D.以上都不对

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