用所给单词的适当形式填空

1. They refused to give any interviews to __________(journal).

2. Edison won his spurs as an __________(invent) while rather young.

3. The piece of bamboo makes a __________(music) sound.

4. My parents are worried about the __________(safe) of me all the time.

5. The air was __________(pollution) by factory smoke.

商业银行贷款，应当遵守法律有关资产负债比例管理的规定，其中商业银行的资本充足率不得低于下列哪个比率

A．8%

B．13%

C．15%

D．25%