（1） 相对分子质量最小的氧化物______（填名称） ；

（2） 雪碧等饮料中常含的一种酸______（填化学式）。

Which of the following statement is true()

A. It was a down week on Wall Street.

B. Consumer prices dropped a little bit more than expected in February.

C. The Fed is likely to cut interest rates.

D. Investors were not worried about the inflation.