【简答题】计算:121×13/25+12×21/25=____.
【单选题】阅读短文,回答 21~25 题: 第 21 题 Why should you still worry about protecting your possessions when you have insured them?
A.
You tend to undervalue your possessions.
B.
You cannot insure against any damage to property.
C.
A robbery can destroy your happiness at home.
D.
It takes a long time to recover all your money.
【简答题】根据下列材料,请回答21~25题: What is this letter about? This letter is about ______________________________for Starways Ltd.
【简答题】阅读短文,回答 21~25 题: 第 21 题 What does the passage say about asteroids and meteoroids?
【单选题】身高体重指数在什么年龄时趋于稳定( )。
【简答题】根据下列材料,请回答 21~25 题: 第 21 题 From the introduction of the Sturgises, we learn that ______.( )