预防医学的核心心问题是()。
A.环境问题
B.健康问题
C.生态平衡问题
D.疾病问题
E.环境与健康关系问题
参考答案:E
The man was in hospital and could not eat for ten days, _____ he lost a lot of weight.[ ]
A. because
B. if
C. while
D. so that
个人汽车贷款的放款只可放款至经销商在贷款银行开立的存款账户。