下列有关动物生殖发育的叙述不正确的是( ) A.蝗虫的发育包括受精卵、幼虫、和成

来源:www.tikuol.com 发布时间:2017-05-22 08:45
题型:选择题

问题:

下列有关动物生殖发育的叙述不正确的是(  )

A.蝗虫的发育包括受精卵、幼虫、和成虫三个时期

B.果蝇的发育过程属于完全变态

C.青蛙的生殖和发育都离不开水

D.雏鸡属于晚成鸟需由亲鸟育雏

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题型:选择题

填写档案时,为了使档案保存较长时间,最好使用下列笔中的[ ]

A.圆珠笔

B.蓝墨水笔

C.铅笔

D.碳素笔

题型:阅读理解

阅读理解。

     Professor Reason recently persuaded 35 people to keep a diary of all their absent-minded actions for

two weeks. When he came to analyse their embarrassing errors, he was surprised to find that nearly all

of them fell into a few groups.

     One of the women, for instance, on leaving her house for work one morning threw her pet dog her

ear-rings and tried to fix a dog biscuit on her ear."the explanation for this is that the brain is like a

computer," explains the professor. "People programme themselves to do certain activities regularly. It

was the woman's custom every morning to throw her dog two biscuits and then put on her ear-rings.

But somehow the action got reversed (颠倒) in the programme." About one in twenty of the incidents

the volunteers reported were these "programme assembly failures."

     Twenty per cent of all errors were "test failures"-primarily due to not verifying the progress of what

the body was doing. A man about to get his car out of the garage passed through the back yard where his

garden jacket and boots were kept, put them on --- much to his surprise. A woman victim reported:" I got

into the bath with my socks on."

     The commonest problem was information " storage failures". People forgot the names of people whose

faces they knew, went into a room and forgot why they were there, mislaid something, or smoked a

cigarette without realizing it.

     The research so far suggests that while the "central processor" of the brain is liberated from

second-to-second control of a well-practised routine, it must repeatedly switch back its attention at

important decision points to check that the action goes on as intended. Otherwise the activity may be

"captured" by another frequently and recently used programme, resulting in embarrassing errors.

1. The purpose of Professor Reason's research is ______.

A. to show the difference between men and women in their reasoning

B. to classify and explain some errors in human actions

C. to find the causes which lead to computer failures

D. to compare computer functions with brain workings

2. Which of the following might be grouped under" programme assembly failures"?

A. A woman went into a shop and forgot what to buy.

B. A man returning home after work left his key in the lock.

C. A lady fell as she was concentrating on each step her feet were taking.

D. An old man, with his shoes on, was trying to put on his socks.

3. The word verifying in paragraph 3 can be replaced by ______.

A. improving

B. changing

C. checking

D. stopping

4. According to the passage, the information "storage failures" refer to _______.

A. the destruction of information collecting system

B. the elimination of one's total memory

C. the temporary loss of part of one's memory

D. the separation of one's action from consciousness

题型:填空题

一般联接螺母紧固后,螺栓应露出螺帽()扣。

题型:单项选择题

我国现行税法规定,个人的劳务报酬所得用于资助给高等学校研究新产品的研究开发经费,经主管税务机关确定,可以( )。

A.全额在本次的劳务报酬所得中抵扣
B.全额在下次的劳务报酬所得中抵扣
C.可以在本次的劳务报酬所得中抵扣30%
D.可以在下次的劳务报酬所得中抵扣30%

题型:判断题

对带手动控制的自动调节阀,当自动调节故障时,可以采用手动控制,先把阀门切换到手动模式,即可通过手柄来控制调节阀。