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【判断题】
若被测组分含量在1%~0.01%,则对其进行的分析属于微量组分分析( V )
A.
正确
B.
错误
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【单选题】People speak English in many countries.English _____________ in many countries..
A.
is spoken
B.
was spoken
C.
is speak
D.
was spoke
【单选题】In many countries there is a fixed charge for personal services. A certain percentage may be【B1】to the bill at a hotel or restaurant. In other places the【B2】may be expected to give a tip, or small amo...
A.
added
B.
excluded
C.
considered
D.
included
【单选题】In many countries, ownership of a registered trademark can only be acknowledged after the mark has gone uncontested for a certain long period of time.
A.
Y
B.
N
C.
NG
【单选题】___不会使齿轮泵容积效率减小。
A.
油温低
B.
转速低
C.
吸入真空度低
D.
转速太高
【单选题】More effective continuing medical education is called for in many countries.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】什么不会使齿轮泵容积效率减小?
A.
油温低
B.
转速太低
C.
吸入真空度低
D.
转速太高
【简答题】阅读材料,回答下列问题。(12分) 坐落在广西壮族自治区乐业的大石围天坑群是世界上最大的天坑群。为了揭开其神秘面纱,中外科考队于2010年10月15日开始对它进行科考活动。 B乐业地区气温、降水量图 (1)天坑是一种分布在喀斯特地区的特殊地质景观,由图A可知我国喀斯特地貌所占比例较高的省区是云南和 。调查发现地下河为天坑“之母”,天坑主要是地下水对 (岩石名称)的溶蚀作用造成的。(4分) (2)图...
【简答题】阅读材料,回答下列问题。 材料一:坐落在广西壮族自治区乐业的大石围天坑群是世界上最大的天坑群。为了揭开其神秘面纱,中外科考队于2010年10月15日开始对它进行科考活动。 材料二:重庆地形图和2005年酸雨的时空分布和变化统计数据。 (1)天坑是一种分布在喀斯特地区的特殊地质景观。调查发现地下河为天坑'之母',天坑主要是地下水对_____(岩石名称)的溶蚀作用造成的。 (2)图2为乐业地区的各月平...
【简答题】2 地表喀斯特地貌有哪些类型?
【单选题】What does it mean for a student to ask questions in class in many countries except America?
A.
It may mean that the teacher is a good teacher.
B.
It may mean that the student is thoughtful.
C.
It may mean that the student is uninformed and that he is implying that the teacher has been unclear.
D.
It may mean that the student considers the teacher to be ineffective.
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