某连锁店有客房120间，现有维修工2名，平均每天检查保养客房6间，请问需要（）天才能将全部客房保养一遍。
A.10
B.20
C.30
参考答案：B
根据括号内的汉语，完成句子。
1. The boy's family is a little poor. He can't ________ (买得起) a computer.
2. Sue is kind of heavy and she ________ (很少) plays sports.
3. They spent a whole day finishing the ________ (必要的) job.
4. We should make our hometown a more natural ________ (环境) to let more people come.
5. Her English teacher's words have ________ (激励) her a whole life.
国债、金融债券、企业债券的共同点是
A．都是筹资者给投资者的债务凭证
B．发行的目的都是弥补国家财政赤字
C．风险都小于储蓄存款
D．风险都比较大
