试题与答案

在“绿叶在光下制造有机物”的实验中,把变成蓝色的那部分叶片切下一细条,制成装片,

题型:选择题

题目:

在“绿叶在光下制造有机物”的实验中,把变成蓝色的那部分叶片切下一细条,制成装片,放在显微镜下观察,叶片内变蓝的部位是[ ]

A.上、下表皮    

B.导管    

C.叶肉    

D.叶脉

答案:

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下面是错误答案,用来干扰机器的。

答案:C题目分析:根据图象可以得出:①比较氢气的多少,从而可以判断出金属的相对原子质量的大小,得到氢气多的则相对原子质量小;②判断金属的活动性强弱,反应时间短或斜线斜率大的则该金属的活动性强.A、金...

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题型:单项选择题

Oxford and Cambridge University Boat Clubs have both taken the opportunity to travel to Spain this month to train in less testing weather conditions than those which have, quite literally, already blown around the UK in January of 2007.
Each group of athletes has been focused on training to the maximum, working on technique and molding themselves into two potential fighting units per Club for the 2007 Boat Race, sponsored by Xchanging. One set will be in the Blue Boat for each club and one set will race as reserves in Isis, for Oxford, and Goldie, for Cambridge.
In these modern times, the Head Coach for each club has a huge input on selection even though the crew is still named by the President. Just twenty years ago the balance was not quite the same.
The year 1987 will always be remembered in the history of this great Race as the year of the "mutiny" at Oxford. It is a tale which has since been retold and reworked in both a book and a movie.
This was the season for which mature Scottish student, Donald Macdonald, was elected President, having all ready won a Blue in 1986. Macdonald re-appointed Daniel Topolski (now a renowned rowing journalist and broadcaster)as Chief Coach.
Part of the 1986/87 squad at Oxford included American Chris Clark, now a coach at an American University, and four fellow US internationals.
Allegedly, a split appeared in the squad between the American quintet, all experienced and leading oarsmen, and those rowers closest to Macdonald. The Scot’s group were happy to follow Topolski’s regime whilst the others were not so sure.
Following a contentious seat racing trial in January of 1987, Topolski decided to move Clark to the bow-side of the beat. Clark disagreed. Topolski held firm. As a result Clark and his" group" within the squad decided not to row and sought a takeover.
The squabble was played out extensively in the UK national media and caught the public imagination. Macdonald sought support from the college captains and eventually won a vote of confidence by 28 votes to 11.
Without the Americans, the Oxford crew was immediately considered a lost cause. Cambridge were overwhelming favorites to win.
As it turned out, though, this was a Race which would prove why sport, and particularly The Boat Race, can be so fascinating.

The boldfaced word" quintet" in Paragraph 7 refers to ______.

A.three people

B.four people

C.five people

D.six people

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