以下桦木属中哪种桦树的小枝无毛?() A.光皮桦 B.西南桦 C.白桦 D.香桦

题型:单项选择题

问题:

以下桦木属中哪种桦树的小枝无毛?()

A.光皮桦

B.西南桦

C.白桦

D.香桦

考点:四川住院医师儿科病例分析病例分析题库
题型:单项选择题

In the second half of each year, many powerful storms are born in the tropical Atlantic and Caribbean seas. Of (91) , only about half a dozen (92) the p, circling winds of 75 miles per hour or more that give them hurricane status, and several usually (93) their way to the coast. There cause millions of dollars of (94) , and bring death to (95) numbers of people.
The great storms that hit the coast start (96) innocent circling disturbances hundreds, even thousands of miles out to sea. As they travel aimlessly over water (97) by the summer sun, they are carried westward by the (98) winds. When conditions are just (99) , warm, moist air flows in (100) the bottom of such a disturbance, moves upward through it and comes out at the top. In the (101) , the moisture in this warm air produces rain, and with it the heat is converted to energy in the form of p winds. As the heat increases, the (102) hurricane begins to swirl in a counter-clockwise motion.
The average life of a hurricane is only about nine days, but it contains almost (103) power than we can imagine. The energy in the heat released by a hurricane’s rainfall in a(n) (104) day would (105) the entire electrical needs of the United States for more than six months. Water, not wind, is the main (106) of death and destruction in a hurricane. A(n) (107) hurricane brings 6-to 12-inch downpours (108) in sudden floods. (109) is the powerful movement of the sea-the mountains of water moving toward the low-pressure hurricane center. The water level (110) as much as 15 feet above normal as it moves toward shore.

A.damage

B.hurt

C.injury

D.profit

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下列哪项不符合安定的临床应用()

A.消除焦虑,治疗失眠

B.控制肌痉挛和抽搐

C.治疗共济失调

D.麻醉前用药

E.消除氯胺酮的精神作用

题型:单项选择题

项目的决策阶段主要是()。

A.编制设计任务书

B.进行初步设计

C.编制项目建议书

D.进行合同磋商

E.编制可行性研究报告

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细胞壁变松散后,植物细胞的伸长才可能发生.将1cm长的燕麦胚芽鞘切段分别固定在图1的两种溶液中,其伸长情况如图2所示,据图分析可知()

A.H+具有两重性的作用特点

B.酸性越强,越有利于胚芽鞘伸长

C.在一定酸性条件下胚芽鞘细胞壁会变松散

D.两种溶液中的胚芽鞘生长情况完全相同

题型:单项选择题

2008年全年研究生教育招生44.6万人,在学研究生128.3万入,毕业生34.5万人。普通高等教育招生607.7万人,在校生2021.0万人,毕业生512.0万人。各类中等职业教育招生810.0万人,在校生2056.3万人,毕业生570.6万人。全国普通高中招生837.0万人,在校生2476.3万入,毕业生836.1万入。全国初中招生1856.2万入,在校生5574.2万人,毕业生1862.9万入。普通小学招生1695.7万入,在校生10331.5万入,毕业生1865.0万人。特殊教育招生6.2万入,在校生41.7万入。幼儿园在园幼儿2475.0万人。

2008年,哪类学校在校生的人数最多()

A.普通高等院校

B.中等职业教育院校

C.初中

D.普通小学

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