赞题库-背景图

单项选择题

The underlined word "boost” in the last paragraph means

A．watch
B．stop
C．lower
D．increase

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热门试题

单项选择题What does your brain do while you are sleeping

A．It improves problem-solving skills and creative thinking.
B．It helps you do your best in school.
C．It helps your brain sort out information from your day.
D．It has a good rest.

单项选择题What do the results of a recent sleep study show

A．People who sleep enough are good at math.
B．Sleep is important for learning.
C．Too much sleep is good for your health.
D．Adults need more sleep than kids.