皮皮学，免费搜题
登录
搜题
【单选题】
柴油机扫气箱着火的原因有( )。A.
滑油压力下降 Ⅱ.冷却水不足，气缸过热 Ⅲ.喷油器雾化不良 Ⅳ.喷油定时过迟 Ⅴ.扫气箱污垢过多 Ⅵ.喷油器滴漏
B.
Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ
C.
Ⅲ＋Ⅳ＋Ⅴ＋Ⅵ
D.
Ⅰ＋Ⅱ＋Ⅲ＋Ⅴ＋Ⅵ
E.
Ⅰ＋Ⅱ＋Ⅳ＋Ⅴ＋Ⅵ
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
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：
参考解析：
知识点：
题目纠错 0
发布
