家庭系统借助成员间的沟通行程相互影响的网络，并且每个个体都会受到影响。
参考答案：错
－To keep safe, everyone_______ wear a seat belt(安全带) in a car.
A. is suppose B. are supposed to C. is supposed to D are supposed
职业技能鉴定专家委员会实行（）
A、上级任命制
B、企业投票制
C、委员聘任制
D、考核制
