单项选择题

A．About every five minutes.
B．about every six minutes.
C．About every seven minutes.
D．About every eight minutes.
<上一题 目录 下一题>
热门 试题

单项选择题
A．To play games with them.B．To help solve their psychological problems.C．To send they to the hospital.D．To make them aware of its harmfulness.
A．To play games with them.
B．To help solve their psychological problems.
C．To send they to the hospital.
D．To make them aware of its harmfulness.
单项选择题
A．It went out of use 300 years ago.B．It was invented after the short bow.C．It was discovered before fire and the wheel.D．It’s still in use today.
A．It went out of use 300 years ago.
B．It was invented after the short bow.
C．It was discovered before fire and the wheel.
D．It’s still in use today.
相关试题