下列哪个中暑类用药孕妇忌用（）
A.十滴水
B.清热凉茶
C.清凉防暑冲剂
D.清凉含片
参考答案：A
磁黄铁矿容易氧化和泥化，是较好浮的硫化铁矿物。
Which statement is TRUE（）.
A.Key letters or abbreviations may not be used in GMDSS radio logbooks under any circumstance
B.Urgent communications do not need to be entered in the GMDSS radio log
C.Both of the above
D.None of the above
