众筹平台面临的信用风险主要来自于项目发起人的虚假信息风险以及资金托管风险。
A. 对
B. 错
There are still many problems ______ before we are ready for a long stay on the moon.
A. solving
B. solved
C. being solved
D. to be solved
______ the past year as an exchange student in Hong Kong, Linda appears more mature than those of her age.
A. Spending
B. Spent
C. Having spent
D. To spend
微信支付 
支付宝支付