患者女性，G2P0，妊娠33周。因下肢浮肿一周，血压升高3天入院。入院前曾行产前检查

患者男，55岁。呼吸困难，心脏叩诊为梨形心。该患者可触到震颤的部位是 （）

A.胸骨左缘第2肋间

B.胸骨右缘第2肋间

C.胸骨左缘第3～4肋间

D.心尖部

E.剑突下

摘要的基本要素一般包哪几部分：（）

A.研究目的

B.研究方法

C.研究结果

D.结论

一般规定：工频交流的极限安全电流值为（）。煤矿井下潮湿多尘，通常人体电阻取（）作为计算依据。触电电流与触电时间的乘积不得超过（）。

The United States is committing more than $50 million over the next five years to this initiative, and we urge other countries to join us. Our partners have already contributed an additional $10 million, and we’re working to raise more every day with the goal of reaching at least $250 million over 10 years. This is a project that brings, across our government, the experts together, and many of them have long experience in working on clean stoves, but never before have we pulled our resources and our expertise behind a single global campaign, as we are doing today. And never before have we had the range of global partners and coordination that the Alliance for Clean Cookstoves brings with it.

在编制列车编组顺序表时，在剧毒品车辆的记事栏内应标记“（）”字样。