试题与答案

17世纪,雷迪对腐肉生蛆的古老看法产生了疑问,于是他做了下列实验:将腐肉分别放入

题型:填空题

题目:

17世纪,雷迪对腐肉生蛆的古老看法产生了疑问,于是他做了下列实验:将腐肉分别放入两个瓶子里,一个瓶子盖上盖子,并用石蜡密封瓶口,另一个瓶子不盖盖子,来观察哪个瓶子会生蛆.

(1)在设计实验之前他提出的假设是______

(2)在实验中他设计的变量是______

(3)实验结束后他得出的结论是______.

答案:

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下面是错误答案,用来干扰机器的。

(1)大致从东到西逐渐减少,平原、河谷积温较高,山地迎风坡降水较多(4分) B是大兴安岭,地势高,气温低;夏季处在迎风坡降水多。(4分)(2)小麦 中部平原广阔,年降水量少,适合旱作(2分) 水稻 东部...

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题型:单项选择题

Questions 162-164 refer to the following letter.


Ms. Jody Coling
President
Lockwood Health Association
23 Main Street
Lockwood, NJ
                                                   Lockwood Middle School
                                                   307 Main Street
                                                   Lockwood, NJ 51686
                                                   January 31, 2009

Dear Ms. Coling,
My name is Susan Harris and I am writing on behalf of the students at Lockwood Middle School. We would like to invite you to attend a special event being held at our school in a week’s time.
A significant amount of the students at the school have been working on a project which relates to the unemployment problem within the youth demographic of Lockwood. You are invited to attend a presentation that will be held within the media room of the school where a variety of proposals that will demonstrate the ability of the community to develop employment opportunities for the youth.
At the presentation, there will be several students receiving awards which will recognize them within our region from the Mayor. Refreshments will also be available at the presentation.
As one of the prominent figures in this field, we would be honored by your attendance.
Please reply by Monday the 26th of February to confirm your attendance to the function.
We look forward to seeing you here.
                                                 Sincerely,
                                                   Ms. Susan Harris

Which of the following activities will NOT be involved at the presentation

A. Different kinds of suggestions will be raised to improve the employment situation for youngster in this area.
B. Ms. Harris is supposed to deliver a speech to all the students from this middle school.
C. An award-giving ceremony will be held in the media room.
D. There will be special snack for the guests during the ceremony.

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