根据首字母及汉语提示拼写单词 (共10小题；每小题1分，满分10分)The flood has caused great __________ （损失） to this city.
Regular exercise can _______ （释放）happy chemicals into the brain.
The space shuttle is a _______（可重复使用的）spacecraft.
The doors opened _______ （自动）as we approached.
On the________(相反), onlookers who saw Mir’s blazing fragments described it as the experience of a lifetime.
The Earth is only one of the n__________ planets in the universe.
There are a variety of cell phones available in different price r_______.
He lost a leg in the accident and had to use an a__________ one now.
The young teachers u_______ the task of welcoming the alumni when they came to celebrate the 50th anniversary of our school.
No one nation can or should try to d______ other nations, for every country is equal.