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【单选题】
【2012年真题】通过设计无法实现本质，应使用安全装置消除危险。在安全装置的设计中不必考虑的是( )。A.
强度、刚度、稳定性和耐久性
B.
对机器可靠性的影响
C.
机器危险部位具有良好的可视性
D.
工具的使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】由苯合成 ,最佳的合成路线是( )。
A.
苯→烷基化→溴化→硝化→氧化
B.
苯→烷基化→硝化→溴化→氧化
C.
苯→溴化→烷基化→硝化→氧化
D.
苯→硝化→溴化→烷基化→氧化
【简答题】表示十六进制数的字母是
【单选题】I live in (an) apartment where (you) don't have (any) sun and so (can't) even grow anything in a flower pot.
A.
an
B.
you
C.
any
D.
can't
【简答题】三、(2019 黑龙江牡丹见一中开学测试)阅读下文,回答问题 朋霍费尔1从五楼纵身一跃 蔡东 海德格尔2行动筹划了已有半年,总是快成了,到底又没成。 以前,周末的时候,身为科大哲学老师的乔兰森喜欢坐在阳台的藤椅上跟学生聊哲学,他说话不紧不慢, 很随意地引述原典,一派闲逸迷人的风度。 那会儿,他才四十出头,圆寸发型很精神,身材又瘦高,站起来在阳台上踱步时,一步一步,像风吹动起 铜管风铃,连脚步声都是...
【单选题】No less remarkable than the invention of nuclear power has been the way the technology has prompted governments to reevaluate the nature of international relations.
A.
No less remarkable than the invention of nuclear power
B.
What was as remarkable as the invention of nuclear power
C.
Inventing nuclear power has been none the less remarkable than
D.
The invention of nuclear power has been no less remarkable as
E.
The thing that was as remarkable as inventing nuclear power
【单选题】This article concludes that ______ contribute to the remarkable long life of these peoples.
A.
moderate diets
B.
clean mountain air
C.
daily hard work
D.
all the above factors
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