$800 000
$2.5 million
$1.7 million
$3.3 million
第1题:
We may conclude from the text that _____.
[A] human cloning will not succeed unless the technique is more efficient
[B] scientists are optimistic about cloning technique
[C] many people are against the idea of human cloning
[D] cloned animals are more favored by owners even if they are weaker
本题考查全局事实细节题。文章一开始就引用专家威斯苏森的话,指出克隆人是愚蠢的尝试。第二段最后两句提到,克隆实验的低效性和危险性在克隆人中不可接受。文章末尾再次引用该专家的话,指出现在动物的研究还没成功,没有必要想到克隆人。由此可见,技术是克隆实验存在的主要问题,也是阻碍克隆人实验的重要原因,因此可推知[A]正确。[B]明显错误,科学家并不乐观。全文只涉及专家和拥护克隆实验的人的观点,因此无从推知[C]。[D]在文中未提及。
第2题:
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第8题:
You are peer reviewing a fellow DBAs backup plan for his NOARCHIVELOG mode database, as shown here: Put the tablespaces in backup mode. Back up the datafiles for all tablespaces. Take the tablespaces out of backup mode. Back up all archived redo logs. Your colleague asks for you to comment on his plan. Which response would be correct?()
第9题:
$million
$_million
1$_million
$1_million
第10题:
237 million
348 million
400 million
120 million
第11题:
第12题:
For
Whether
Then
When
第13题:
第14题:
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第16题:
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第18题:
第19题:
下列哪个不是正确标识符()。
第20题:
at least as much as four million others cannot
at least as many as four million and more cannot
more than four million of other students are unable to
there was at least four million other students unable to
more than four million others cannot
第21题:
the parts of the human body don't always work together seamlessly to keep us alive and functioning
the human body cannot be counted on to work flawlessly, while watches rarely fail
scientists can never tell ahead of time which experiments will work and which will not
the human body exists in its present state due to a long evolutionary process that began more than 500 million years ago
the human body contains many useless renmants left over from the evolutionary process
第22题:
The plan will work as is.
The plan needs to be modified to allow for an archive-log switch after step 3.
The plan needs to be modified so that a backup of the archived redo logs occurs before step 1.
The plan needs to be adjusted to shut down the database after step 1 and to restart the database after step 2.
The plan cannot work as presented.
第23题:
$1 000
$2 000
$2 500
$2 800
$3 500