皮皮学，免费搜题
登录
搜题
【判断题】
顺序阀是用来控制液压系统中各执行组件动作的先后顺序的。依控制压力的来源不同,顺序阀又可分为内控式和外控式两种。A.
正确
B.
错误
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】Exchange students must have the following qualifications EXCEPT
A.
over 11/12 years of education.
B.
speaking English well.
C.
a good record in school.
D.
being 15 to 18 years old.
【简答题】如何确定沉积岩的相对地质年代？
【简答题】The saying "Students must do the boring stuff before they can do the interesting stuff" can be roughly translated as “Students must they can be allowed to think.”(memorize)
【简答题】如何确定沉积岩的相对地质年代?
【简答题】All students must have access to quality education without regard wealth or class. A.for B .of C.in D.to
【单选题】Students must be strict ____ their studies and teachers should be strict _____ their students.
A.
in, at
B.
at, with
C.
with , in
D.
in, with
【简答题】如何确定沉积岩的相对地质年代 ?
【单选题】The author probably feels that
A.
the educational system is sound, and students must follow every rule
B.
parents alone must take responsibility for the rise in student cheating
C.
the educational system in this country would benefit from a thorough evaluation
D.
students who cheat should be expelled from school
【简答题】如何确定沉积岩的相对地质年代
【简答题】如何确定沉积岩的相对地质年代？
相关题目：