皮皮学，免费搜题
登录
搜题
【单选题】
某人用求样品含量的数据,在计算器上求得:(15.35-13.35)×0.1000×0.1238÷0.2037×100%=12.15513% 按有效数字规则处理其结果A.
12.2%
B.
12.15％
C.
12.16％
D.
12.1%
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Why does the professor mention fossils?
A.
To describe the evidence Wegener used to develop his theory.
B.
To suggest that Wegener borrowed ideas from earlier scientists.
C.
To explain how Wegener first became interested in geology.
D.
To show why most scientists ridiculed Wegener's theory.
【单选题】Why does the author mention Florence Nightingale?
A.
To describe the career of a pioneer of nursing education.
B.
To show that women doctors supported the effort to upgrade nursing.
C.
To prove that conditions differed in military and civilian hospitals.
D.
To show the similarity of her means to those used by United States reformers.
【单选题】万能角度尺是利用基尺、角尺、直尺的不同组合,进行0°~320°范围内角度的测量,现将基尺和角尺组合测得右图所示的读数应为。
A.
9°16′
B.
99°16′
C.
189°16′
D.
279°16′
相关题目：