在汶川地震发生后,战士们为了抢险救灾长时间不吃不喝不休息,其体内激素含量变化的情况正确的是[ ]
A.胰岛素增多
B.胰高血糖素减少
C.肾上腺素减少
D.抗利尿激素增多
答案:D
导致经济波动的投资主要是( )。
A.存货投资
B.重置投资
C.意愿投资
D.固定资产投资
Questions 1-4
Why do people participate in the activities of a study circle?()
A.To study a subject or to join in a cultural activity.
B.To become a member of the government appointed by the parliament.
C.To demand more financial support from the government.
D.To upgrade their knowledge at school.