皮皮学，免费搜题
登录
搜题
【单选题】
下列实例中的运动物体,哪些机械能是不守恒的A.
钢球做斜抛运动。
B.
用细绳拴着一个小球，绳的一端固定，使小球在光滑的水平面上做匀速圆周运动
C.
用细绳拴着一个小球，绳的一端固定，使小球在竖直平面上做圆周运动
D.
物体沿着一个斜面匀速下降
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】According to the passage, the author's attitude toward educational theorists is ______.
A.
approval
B.
admiring
C.
unbiased
D.
critical
【单选题】The author's opinion on the educational exchange on both sides of Taiwan Strait is ______.
A.
that politics is still in the way of its development
B.
officials on both sides have taken initiatives in pushing its development
C.
the exchange program suffered great setbacks owing to the increasing tension across Taiwan Strait
D.
the refusal of recognition of the academic degrees is the most formidable obstacle
【单选题】It's essential that every child ______ the same educational opportunities.
A.
has
B.
have
C.
had
D.
will have
【单选题】If ______ and lodging are included in educational fees, a university student in the U.S. will need approximately $10,000 a year.
A.
meal
B.
board
C.
food
D.
provisions
【单选题】The author's opinion on the educational exchange on both sides of the Taiwan Strait is ______ .
A.
that politics is still in the way of its development
B.
officials on both sides have taken initiatives in pushing its development
C.
the exchange program suffered great setbacks owing to the increasing tension across the Taiwan Strait
D.
the refusal of recognition of the academic degrees is the most formidable obstacle
【简答题】Parents are important elements in the children’s educational progress. They are capable of being good resources not just for children, but also for schools and teachers. Parents can help children real...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
