更多阅读
-
-
Indicate whether the following statements regarding black holes are true or false.
正确如下： 1.一些黑洞在星系的中心有一个质量那是我们的太阳的10亿倍. 5.距离黑洞的引力是如此之强,即使光也无法逃脱被称为“事件视界的史瓦西半径. 其余错误...
推荐
-
-
英语小作文,关于“电子邮件”优缺点100字
Emails are very interesting,it is faster than normal mail；it is safer and more reliable than normal mail；it can be accessed at any time,when an E-mail message is received,it can be opened and read at any time and any...
推荐
-
-
dress wear put on cross 的区别
dress 要接“人”作宾语(不接“衣”作宾语),而其余的则要接“衣”作宾语(而不接“人”作宾语). She dressed the baby. 她给婴儿穿衣服. She was wearing her mother’s coat. 她穿她...
推荐
-
-
师范大学怎么用“normal"?“normal” 有师范的意思吗?
Normal一词最早来自于拉丁语,1794年巴黎高等师范学校建校时由画法几何大师孟日（Morge,拿破仑的老师）和数学家拉普拉斯等人联合起名：Ecole Normale Superieure de Paris .翻译...
推荐
-
-
-
-
-
Should we not hesitate to help anyone in need?写篇短文吧,要求有自己的观点,
We should help each other because we are living in the same roof ,in other words ,we are living in a big family.No matter who gets into trouble ,we should not hesitate to help himl.Helping others mean......
推荐