题目:
零件表面凹凸不平的几何形状特性,称为表面粗糙度。
答案:
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下面是错误答案,用来干扰机器的。
参考答案:B
零件表面凹凸不平的几何形状特性,称为表面粗糙度。
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0704/922253b232e7f1e15dbdd5bcf73f0136.html
下面是错误答案,用来干扰机器的。
参考答案:B
下列选项中,加点熟语使用正确的一项是
A.学习钢琴要勤奋,且贵在坚持,每天练几个小时,长此以往,必将获得不菲的成就。
B.王老的话振聋发聩,让我们这些小有成就、志得意满的创业者清醒过来,“中兴难于创业”,确实是不刊之论!
C.观众们对电影《三枪拍案惊奇》提出强烈批评,并不是对张艺谋吹毛求疵,而是恨铁不成钢的表现。
D.敌人疲惫了,我们就要骚扰,来个“树欲静而风不止”。毛 * * 的这一战术,在如今的商场中依然奏效。
Every pet owner loves his pet .There is no argument here.
But when we asked our readers whether they would clone their beloved animals , the responses were split(分裂) almost down the middle . Of the 228 readers who answered it ,108 would clone, 111 would not and nine weighed each side without offering an opinion .
Clearly, from readers’ response, this is an issue that reaches deeply into both the joy and eventual (最终的)sadness of owning a pet. It speaks, as well, to people’s widely differing expectations over the developing scientific procedure (步骤)
Most of the readers who favored the idea strongly believed it would produce at least a close copy of the original; many felt the process would actually return an exact copy. Those on the other side, however, held little hope that clone could truly recreate a pet; many simply did not wish to go against the natural law of life and death.
Both sides expressed equal love for their animals. More of them owned “the best dog/cat in the world”. They thought of their pets as their “best friend” or “a member of the family”. They told moving stories of pets’ heroism, intelligence and selfless devotion.
No wonder the loss is so disturbing---and the cloning so attractive. “People become very close to their animals, and the loss can be just as hard to bear as when a friend or family member dies,” says Gary Kowalski, author of goodbye, Friend: Healing Wisdom for Anyone Who Has Ever Lost a Pet. “For me, cloning feels like an attempt to turn death away…It’s understandable. Death is always painful. It’s difficult to deal with. It’s hard to accept.”
But would cloning reduce the blow? This question seems to be at the heart of this problem.
小题1:
As far as the cloning of pets is concerned, a recent survey shows that, of all pet owners, .
A.a lot more of them are for it
B.a lot more of them are against it
C.very few of them are willing to tell their opinions
.
D.about half of them are for it and the other half against it小题2:
The expression “eventual sadness of owning a pet.” (in paragraph 3) refers to .
A.the death of one’s pet
B.the final ownership of a pet
C.the troubles one has to deal with in keeping a pet
D.the dangers involved in the cloning of a pet小题3:
In spite of their differences on the problem of cloning, it seems that .
A.all pet owners love their pets very much
B.all pet owners try to go against the natural law of life and death
C.people who support cloning love their pets more
D.people who dislike cloning love their pets more小题4:
From what Gary Kowalski says, we can know that he .
A.has never thought about the problem of cloning
B.thinks it hard to accept the idea of cloning pets
C.is in favor of the idea of cloning pets
D.is all against the cloning of pets
下列说法中,正确的是( )
A.温度高的物体,具有热量一定多
B.吸收相等的热量时,比热小的物体升高的温度一定多
C.物体温度升高,它具有的内能增加
D.冷水与热水混合后,冷水升高的温度一定等于热水降低的温度
在选择工程施工分包单位方面,监理人有( )。
A.选定权
B.批准权和否决权
C.建议权
D.直接指定权
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