单项选择题

Passage One
Questions 26 to 28 are based on the passage you have just heard.

A．It’s a problem not yet solved.
B．It’s a question difficult to answer.
C．It’s a matter that is hidden or secret.
D．It’s a legend handed down from the past.
<上一题 目录 下一题>
热门 试题

单项选择题
A．They don’t get rid of loose arm.B．They can damage arm muscles.C．They aren’t acceptable to most people.D．They can raise one’s blood pressure.
A．They don’t get rid of loose arm.
B．They can damage arm muscles.
C．They aren’t acceptable to most people.
D．They can raise one’s blood pressure.
单项选择题
A．Industrial specifications.B．Computer development.C．Scientific drawings.D．Science fiction.
A．Industrial specifications.
B．Computer development.
C．Scientific drawings.
D．Science fiction.
相关试题