从寿命损失率指标分析，对人类寿命影响较大的疾病因素是（）。
A．心血管疾病
B．脑血管疾病
C．恶性肿瘤
D．车祸
E．自杀
参考答案：D
_____, I believe, and you will find Tom is very outgoing.[ ]
A. Having a talk with the student
B. Given a talk with the student
C. If you have a talk with the student
D. Once talk with the student
下列不是高原环境下人体的碳水化合物代谢特点的是（）
A.糖原分解增强
B.糖原异生降低
C.无氧酵解降低
D.葡萄糖的利用率增加
E.血糖降低
