下图示意长江上游地区雪线高度的经向和纬向变化趋势。完成1~2题。

1、该地区雪线高度变化的趋势是[ ]

A、自北向南增高

B、自西向东增高

C、自东北向西南增高

D、自东南向西北增高

2、影响该地区雪线高度变化趋势的主要因素是[ ]

A、海拔

B、降水

C、热量

D、坡向

A client at term arrives at the labor room experiencing contractions every 4 minutes. After a brief assessment, she’s admitted and an electronic fetal monitor is applied. Which of the following would alert the nurse to an increased potential for fetal distress（）

A. Weight gain of 30 lb (13.6 kg).

B. Maternal age of 32 years.

C. Blood pressure of 146/90 mmHg.

D. Treatment for syphilis at 15 weeks’ gestation.