Let's _____ the sports club. [ ]
A. do join
B. to join
C. join
D. joins
答案：C
原子、电子、普通生物体、太阳系、地球中尺度最小的是 。
An analyst does research about the time value of money. An investor deposits $500 million in an account that eams a stated annual rate of 3.5% for the first year and 3.0% for the second year, compounded continuously. If there are no additional deposits or withdraws, the value of the account after two years is closest to:（）
A. $519.05 million.
B. $533.58 million.
C. $536.25 million.
