下列是对农作物Ⅰ和农作物Ⅱ在同一土壤中N、P、K三要素肥效试验结果。“+”表示施

题型:选择题

问题:

下列是对农作物Ⅰ和农作物Ⅱ在同一土壤中N、P、K三要素肥效试验结果。“+”表示施肥,“-”表示未施。下列结论正确的是

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A.农作物Ⅰ的氮素来自固氮菌

B.农作物Ⅱ的氮素来自固氮菌

C.对农作物Ⅰ来说,磷钾是必需元素,氮是非必需元素

D.不同的农作物对磷钾的需要量是相同的

考点:微生物的生长与利用
题型:选择题

根据所给词的适当形式填空。

      Chopin 1.____ (bear) in March, 1810 near Warsaw (华沙) in Poland. He is one of the greatest

2.____ (music) in the world. In 1831, when he went to Paris, no people but he could play the piano

very well.

      At that time, people in Paris liked the Hungarian (匈牙利) pianist Liszt (李斯特).

      One night, at a concert, Liszt went to the piano and all the people around. As all the light s in the

concert were turned off, a wonderful piano concert 3.____ (start) . The music was so good that the

listeners all greatly 4.____ (interest) it. They kept 5.____ (praise) the pianist and thought that Liszt

reached something new in playing the piano.

      Suddenly, all the lights were turned on again as the music came to an end. And there stood a young

man instead of the famous Hungarian pianist Liszt. He planned all this. As the lights went out, he left his

chair and let Chopin take his place. So with the help of Liszt and his own 6.____ (talented), Chopin

soon 7. ____ (become) famous.

题型:选择题

既能健脾消食,又能化坚消石的药物是()

A.鸡内金

B.神曲

C.莱菔子

D.山楂

E.麦芽

题型:选择题

阅读下面的文字,分别用说明性语言、描述性语言解说这段话的意思。(4分)

心理学家和生态学家认为,窗外的环境十分重要,如果要让孩子健康,就不要住在六楼以上的楼层。身居高层,空气中含有大量的有害物质,而且整天面对的是砖墙,会引起孩子对外界不由自主的敌意。理想楼层是不超过六楼,窗外环境好,有树,有花草,有水。树和水还是极好的过滤器,能使周围空气很洁净。

⑴一般性的说明:__________。(40字以内)

⑵生动性的描述:__________。(45字以内)

题型:选择题

电缆出线梗横截面积应不小于电缆芯截面积的()。

A.1.5倍

B.2倍

C.1倍

D.3倍

题型:选择题

关于病毒性心肌炎。

有诊断价值的血清学检查

A.乳酸脱氢酶(LDH)增高

B.肌酸激酶(CK)增高

C.谷草转氨酶(GOT)增高

D.LDH1增高

E.心肌肌钙蛋白T(+)

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