单项选择题

Compared with adults, children are ______.

A．more susceptible to colds and flu
B．more likely to touch their faces and noses
C．more careful about their appearances
D．washing their hands more frequently

<上一题目录下一题>

热门试题

单项选择题

Private in the passage means ______.

A．a private servant
B．someone who does things privately
C．soldier
D．the automated machine which can offer change for a dollar

单项选择题

Which one is NOT an auto immune disease

A．Diabetes.
B．Rheumatoid arthritis.
C．Ulcerative colitis.
D．Manic-depression.