下列说法错误的是（） A．生物的适应性是普遍成在的 B．生物能够永久的适应环境

发布时间：2017-07-30 18:16 │ 来源：www.tikuol.com

题型：选择题

问题：

下列说法错误的是（）

A．生物的适应性是普遍成在的

B．生物能够永久的适应环境

C．生活在炎热缺水荒漠中的骆驼，尿液非常少，这是对干旱环境的适应

D．黄鼬遇到敌害时，常放出臭气，有利于它逃避敌害

考点：人类活动对生态环境的危害保护生态环境

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Sonia: Hi!
Mary:   1  !
Sonia: Is this your notebook? There isn't a name on it.
Mary: No,   2  .
Sonia: Are you sure?  3   is your notebook?
Mary: Oh, it's on the desk.
Sonia: Is this   4   notebook?
Mary: I think it is   5   notebook. Let's ask   6  . Maria !
Maria:   7  ?
Mary: Is this your notebook?
Maria: Let me see. Oh, yes, it is   8   notebook.
Mary: Oh,  good,  but please write down your name on it. By the way, where is the teachers' office?
Maria:   9   way, please.
Mary:   10   .

( )1. A. OK
( )2. A. this is
( )3. A. Who
( )4. A. Sonia's
( )5. A. she
( )6. A. her
( )7. A. OK
( )8. A.I
( )9. A. This
( )10. A. Excuse me

B. Hi
B. it isn't
B. What
B. Mary's
B. her
B. him
B. Yes
B. me
B. Its
B. Sorry

C. How are you
C. this isn't
C. How
C. Maria's
C. him
C. she
C. No
C. my
C. His
C. Thank you

D. Good morning
D. it is
D. Where
D. your
D. his
D. he
D. Hi
D. mine
D. Here's
D. It's good

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如图2所示，写出发动机起动过程中ECU控制的油泵电路。

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______________年10月，人民解放军胜利进军拉萨，西藏和平解放。

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古典主义音乐指的是1730—1820年这一段时间的欧洲主流音乐。其杰出代表包括（）。

A.海顿

B.莫扎特

C.贝多芬

D.柴可夫斯基

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用花药离体培养出马铃薯单倍体植株，当它进行减数分裂时，观察到染色体两两配对，形成12对，据此现象可推知产生花药的马铃薯是（）。

A、二倍体

B、三倍体

C、四倍体

D、六倍体

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