以下各种物质中由人体的内分泌腺产生的是( )
A:尿素
B:消化腺
C:激素
D:汗液
健康是人类永恒的主题。下列各种生活方式中,属于健康生活方式的是( )
— Is that true? Maybe he has ________ teaching skills to make our class interesting.
—No, you _____. You come a little later.