根据句意及单词首写字母完成句子。

1. The ice is very thick. Let's go s         .

2. The students are r         money for the poor.

3. Jack has been in the club s       two years ago.

4. Several s          have been skating for 2 hours.

5. D     the second World War, many European Jews came to Shanghai.

初孕妇，妊娠30周。因头痛、突发视物不清1天急诊就诊。查体：P60次／分，BP160／110mmHg，脚踝部凹陷性水肿，神经系统检查未发现异常。产科检查：子宫底高度在脐上2横指，胎心率120次／分。为评估病情的严重程度，首选的检查是（）。

A.头颅CT

B.甲状腺功能测定

C.尿常规

D.心脏彩超

E.眼底检查