0～9这十个数的和与这十个数的积相比较，哪个大？[ ]
A．和
B．积
C．同样
答案：A
When I _______ the museum, I found that it _______.
A．arrived; closed
B．arrived; was closed
C．reached; closed
D．reached; was closed
哪些外币可兑换成人民币？
